689044272 has 240 divisors, whose sum is σ = 2310387840. Its totient is φ = 175343616.

The previous prime is 689044259. The next prime is 689044277. The reversal of 689044272 is 272440986.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (689044277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 759243 + ... + 760149.

It is an arithmetic number, because the mean of its divisors is an integer number (9626616).

Almost surely, 2^689044272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689044272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1155193920).

689044272 is an abundant number, since it is smaller than the sum of its proper divisors (1621343568).

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

689044272 is a wasteful number, since it uses less digits than its factorization.

689044272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 689044272 is about 26249.6527977038. The cubic root of 689044272 is about 883.2474160967.

The spelling of 689044272 in words is "six hundred eighty-nine million, forty-four thousand, two hundred seventy-two".