65293072 has 20 divisors (see below), whose sum is σ = 136236940. Its totient is φ = 30135168.

The previous prime is 65293069. The next prime is 65293087. The reversal of 65293072 is 27039256.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34999056 + 30294016 = 5916^2 + 5504^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156747 + ... + 157162.

It is an arithmetic number, because the mean of its divisors is an integer number (6811847).

Almost surely, 2^65293072 is an apocalyptic number.

It is an amenable number.

65293072 is an abundant number, since it is smaller than the sum of its proper divisors (70943868).

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

65293072 is a wasteful number, since it uses less digits than its factorization.

65293072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313930 (or 313924 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 65293072 is about 8080.4128607392. The cubic root of 65293072 is about 402.6759581987.

The spelling of 65293072 in words is "sixty-five million, two hundred ninety-three thousand, seventy-two".