65713775 has 24 divisors (see below), whose sum is σ = 84921648. Its totient is φ = 50400000.

The previous prime is 65713759. The next prime is 65713777. The reversal of 65713775 is 57731756.

It is not a de Polignac number, because 65713775 - 2⁴ = 65713759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65713777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62000 + ... + 63050.

It is an arithmetic number, because the mean of its divisors is an integer number (3538402).

Almost surely, 2^65713775 is an apocalyptic number.

65713775 is a deficient number, since it is larger than the sum of its proper divisors (19207873).

65713775 is a wasteful number, since it uses less digits than its factorization.

65713775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1158 counting only the distinct ones).

The product of its digits is 154350, while the sum is 41.

The square root of 65713775 is about 8106.4033331682. The cubic root of 65713775 is about 403.5389616207.

The spelling of 65713775 in words is "sixty-five million, seven hundred thirteen thousand, seven hundred seventy-five".