662079628 has 48 divisors (see below), whose sum is σ = 1406905920. Its totient is φ = 266547456.

The previous prime is 662079623. The next prime is 662079631. The reversal of 662079628 is 826970266.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (662079623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19026 + ... + 41062.

It is an arithmetic number, because the mean of its divisors is an integer number (29310540).

Almost surely, 2^662079628 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 662079628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (703452960).

662079628 is an abundant number, since it is smaller than the sum of its proper divisors (744826292).

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

662079628 is a wasteful number, since it uses less digits than its factorization.

662079628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22114 (or 22112 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 662079628 is about 25730.9080290611. The cubic root of 662079628 is about 871.5722781698.

The spelling of 662079628 in words is "six hundred sixty-two million, seventy-nine thousand, six hundred twenty-eight".