662623538 has 8 divisors (see below), whose sum is σ = 998393088. Its totient is φ = 329825844.

The previous prime is 662623519. The next prime is 662623553. The reversal of 662623538 is 835326266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×662623538² = 878139906223274888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 662623495 and 662623504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742406 + ... + 743297.

It is an arithmetic number, because the mean of its divisors is an integer number (124799136).

Almost surely, 2^662623538 is an apocalyptic number.

662623538 is a deficient number, since it is larger than the sum of its proper divisors (335769550).

662623538 is a wasteful number, since it uses less digits than its factorization.

662623538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485928.

The product of its digits is 311040, while the sum is 41.

The square root of 662623538 is about 25741.4750548604. The cubic root of 662623538 is about 871.8108834682.

The spelling of 662623538 in words is "six hundred sixty-two million, six hundred twenty-three thousand, five hundred thirty-eight".