662397439 has 24 divisors (see below), whose sum is σ = 759508560. Its totient is φ = 576976400.

The previous prime is 662397431. The next prime is 662397457. The reversal of 662397439 is 934793266.

It is not a de Polignac number, because 662397439 - 2³ = 662397431 is a prime.

It is a Duffinian number.

Its product of digits (1469664) is a multiple of the sum of its prime factors (324).

It is a junction number, because it is equal to n+sod(n) for n = 662397392 and 662397401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662397431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5056404 + ... + 5056534.

It is an arithmetic number, because the mean of its divisors is an integer number (31646190).

Almost surely, 2^662397439 is an apocalyptic number.

662397439 is a deficient number, since it is larger than the sum of its proper divisors (97111121).

662397439 is an equidigital number, since it uses as much as digits as its factorization.

662397439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 171 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 49.

The square root of 662397439 is about 25737.0829543676. The cubic root of 662397439 is about 871.7117130335.

The spelling of 662397439 in words is "six hundred sixty-two million, three hundred ninety-seven thousand, four hundred thirty-nine".