662634973 has 32 divisors (see below), whose sum is σ = 895184640. Its totient is φ = 476498880.

The previous prime is 662634967. The next prime is 662634979. The reversal of 662634973 is 379436266.

It is an interprime number because it is at equal distance from previous prime (662634967) and next prime (662634979).

It is not a de Polignac number, because 662634973 - 2¹⁷ = 662503901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662634979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167211 + ... + 171127.

It is an arithmetic number, because the mean of its divisors is an integer number (27974520).

Almost surely, 2^662634973 is an apocalyptic number.

It is an amenable number.

662634973 is a deficient number, since it is larger than the sum of its proper divisors (232549667).

662634973 is a wasteful number, since it uses less digits than its factorization.

662634973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974 (or 3948 counting only the distinct ones).

The product of its digits is 979776, while the sum is 46.

The square root of 662634973 is about 25741.6971662709. The cubic root of 662634973 is about 871.8158984325.

The spelling of 662634973 in words is "six hundred sixty-two million, six hundred thirty-four thousand, nine hundred seventy-three".