65344731 has 4 divisors (see below), whose sum is σ = 87126312. Its totient is φ = 43563152.

The previous prime is 65344723. The next prime is 65344739. The reversal of 65344731 is 13744356.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (65344723) and next prime (65344739).

It is a cyclic number.

It is not a de Polignac number, because 65344731 - 2³ = 65344723 is a prime.

It is a super-2 number, since 2×65344731² = 8539867738924722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65344692 and 65344701.

It is not an unprimeable number, because it can be changed into a prime (65344739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10890786 + ... + 10890791.

It is an arithmetic number, because the mean of its divisors is an integer number (21781578).

Almost surely, 2^65344731 is an apocalyptic number.

65344731 is a deficient number, since it is larger than the sum of its proper divisors (21781581).

65344731 is a wasteful number, since it uses less digits than its factorization.

65344731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21781580.

The product of its digits is 30240, while the sum is 33.

The square root of 65344731 is about 8083.6087856848. The cubic root of 65344731 is about 402.7821274704.

The spelling of 65344731 in words is "sixty-five million, three hundred forty-four thousand, seven hundred thirty-one".