65747538 has 24 divisors (see below), whose sum is σ = 147730128. Its totient is φ = 21915684.

The previous prime is 65747531. The next prime is 65747603. The reversal of 65747538 is 83574756.

65747538 is a `hidden beast` number, since 6 + 574 + 75 + 3 + 8 = 666.

It is a super-2 number, since 2×65747538² = 8645477506122888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65747493 and 65747502.

It is not an unprimeable number, because it can be changed into a prime (65747531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67156 + ... + 68127.

It is an arithmetic number, because the mean of its divisors is an integer number (6155422).

Almost surely, 2^65747538 is an apocalyptic number.

65747538 is an abundant number, since it is smaller than the sum of its proper divisors (81982590).

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

65747538 is a wasteful number, since it uses less digits than its factorization.

65747538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135300 (or 135288 counting only the distinct ones).

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

The square root of 65747538 is about 8108.4855552686. The cubic root of 65747538 is about 403.6080610509.

The spelling of 65747538 in words is "sixty-five million, seven hundred forty-seven thousand, five hundred thirty-eight".