689252472 has 24 divisors (see below), whose sum is σ = 1866725640. Its totient is φ = 229750800.

The previous prime is 689252449. The next prime is 689252479. The reversal of 689252472 is 274252986.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×689252472² = 950137940316221568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689252479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4786404 + ... + 4786547.

It is an arithmetic number, because the mean of its divisors is an integer number (77780235).

Almost surely, 2^689252472 is an apocalyptic number.

It is an amenable number.

689252472 is an abundant number, since it is smaller than the sum of its proper divisors (1177473168).

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

689252472 is a wasteful number, since it uses less digits than its factorization.

689252472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9572963 (or 9572956 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 689252472 is about 26253.6182649173. The cubic root of 689252472 is about 883.3363671270.

The spelling of 689252472 in words is "six hundred eighty-nine million, two hundred fifty-two thousand, four hundred seventy-two".