689382954 has 64 divisors (see below), whose sum is σ = 1706745600. Its totient is φ = 204797376.

The previous prime is 689382943. The next prime is 689382959. The reversal of 689382954 is 459283986.

It is a super-2 number, since 2×689382954² = 950497714531532232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 689382954.

It is not an unprimeable number, because it can be changed into a prime (689382959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3427 + ... + 37289.

It is an arithmetic number, because the mean of its divisors is an integer number (26667900).

Almost surely, 2^689382954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689382954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853372800).

689382954 is an abundant number, since it is smaller than the sum of its proper divisors (1017362646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689382954 is a wasteful number, since it uses less digits than its factorization.

689382954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33916 (or 33910 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 689382954 is about 26256.1031762141. The cubic root of 689382954 is about 883.3921049144.

The spelling of 689382954 in words is "six hundred eighty-nine million, three hundred eighty-two thousand, nine hundred fifty-four".