689522392 has 16 divisors (see below), whose sum is σ = 1392305040. Its totient is φ = 318241056.

The previous prime is 689522387. The next prime is 689522399. The reversal of 689522392 is 293225986.

It is a super-2 number, since 2×689522392² = 950882258138803328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689522399) 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 3 ways as a sum of consecutive naturals, for example, 3314908 + ... + 3315115.

It is an arithmetic number, because the mean of its divisors is an integer number (87019065).

Almost surely, 2^689522392 is an apocalyptic number.

It is an amenable number.

689522392 is an abundant number, since it is smaller than the sum of its proper divisors (702782648).

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

689522392 is a wasteful number, since it uses less digits than its factorization.

689522392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6630042 (or 6630038 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 689522392 is about 26258.7583864889. The cubic root of 689522392 is about 883.4516606488.

The spelling of 689522392 in words is "six hundred eighty-nine million, five hundred twenty-two thousand, three hundred ninety-two".