65757438 has 12 divisors (see below), whose sum is σ = 142474488. Its totient is φ = 21919140.

The previous prime is 65757427. The next prime is 65757457. The reversal of 65757438 is 83475756.

65757438 is a `hidden beast` number, since 6 + 575 + 74 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 65757393 and 65757402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1826578 + ... + 1826613.

It is an arithmetic number, because the mean of its divisors is an integer number (11872874).

Almost surely, 2^65757438 is an apocalyptic number.

65757438 is an abundant number, since it is smaller than the sum of its proper divisors (76717050).

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

65757438 is a wasteful number, since it uses less digits than its factorization.

65757438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3653199 (or 3653196 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 65757438 is about 8109.0960038712. The cubic root of 65757438 is about 403.6283179274.

It can be divided in two parts, 6575743 and 8, that added together give a triangular number (6575751 = T₃₆₂₆).

The spelling of 65757438 in words is "sixty-five million, seven hundred fifty-seven thousand, four hundred thirty-eight".