65238984 has 48 divisors (see below), whose sum is σ = 177063900. Its totient is φ = 21700224.

The previous prime is 65238983. The next prime is 65238997. The reversal of 65238984 is 48983256.

It can be written as a sum of positive squares in 2 ways, for example, as 56700900 + 8538084 = 7530^2 + 2922^2 .

It is a super-2 number, since 2×65238984² = 8512250066704512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65238983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59142 + ... + 60234.

Almost surely, 2^65238984 is an apocalyptic number.

It is an amenable number.

65238984 is an abundant number, since it is smaller than the sum of its proper divisors (111824916).

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

65238984 is a wasteful number, since it uses less digits than its factorization.

65238984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1927 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 65238984 is about 8077.0653086378. The cubic root of 65238984 is about 402.5647368322.

The spelling of 65238984 in words is "sixty-five million, two hundred thirty-eight thousand, nine hundred eighty-four".