65072293 has 16 divisors (see below), whose sum is σ = 77144256. Its totient is φ = 54109440.

The previous prime is 65072279. The next prime is 65072297. The reversal of 65072293 is 39227056.

It is a happy number.

It is not a de Polignac number, because 65072293 - 2⁹ = 65071781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65072297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14146 + ... + 18172.

It is an arithmetic number, because the mean of its divisors is an integer number (4821516).

Almost surely, 2^65072293 is an apocalyptic number.

It is an amenable number.

65072293 is a deficient number, since it is larger than the sum of its proper divisors (12071963).

65072293 is a wasteful number, since it uses less digits than its factorization.

65072293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4164.

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

The square root of 65072293 is about 8066.7399239098. The cubic root of 65072293 is about 402.2215823372.

The spelling of 65072293 in words is "sixty-five million, seventy-two thousand, two hundred ninety-three".