32997768 has 32 divisors (see below), whose sum is σ = 83729760. Its totient is φ = 10834560.

The previous prime is 32997761. The next prime is 32997787. The reversal of 32997768 is 86779923.

It is a self number, because there is not a number n which added to its sum of digits gives 32997768.

It is not an unprimeable number, because it can be changed into a prime (32997761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8653 + ... + 11868.

It is an arithmetic number, because the mean of its divisors is an integer number (2616555).

Almost surely, 2^32997768 is an apocalyptic number.

It is an amenable number.

32997768 is an abundant number, since it is smaller than the sum of its proper divisors (50731992).

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

32997768 is a wasteful number, since it uses less digits than its factorization.

32997768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20597 (or 20593 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The square root of 32997768 is about 5744.3683725889. The cubic root of 32997768 is about 320.7462013046.

The spelling of 32997768 in words is "thirty-two million, nine hundred ninety-seven thousand, seven hundred sixty-eight".