662479489 has 16 divisors (see below), whose sum is σ = 775526400. Its totient is φ = 554149440.

The previous prime is 662479463. The next prime is 662479501. The reversal of 662479489 is 984974266.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 662479489 - 2¹⁵ = 662446721 is a prime.

It is a super-2 number, since 2×662479489² = 877758146691402242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662470489) 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, 66187 + ... + 75535.

It is an arithmetic number, because the mean of its divisors is an integer number (48470400).

Almost surely, 2^662479489 is an apocalyptic number.

It is an amenable number.

662479489 is a deficient number, since it is larger than the sum of its proper divisors (113046911).

662479489 is a wasteful number, since it uses less digits than its factorization.

662479489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600.

The product of its digits is 5225472, while the sum is 55.

The square root of 662479489 is about 25738.6769084971. The cubic root of 662479489 is about 871.7477040106.

The spelling of 662479489 in words is "six hundred sixty-two million, four hundred seventy-nine thousand, four hundred eighty-nine".