65740534 has 16 divisors (see below), whose sum is σ = 100896768. Its totient is φ = 32116392.

The previous prime is 65740523. The next prime is 65740537. The reversal of 65740534 is 43504756.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 65740534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65740537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15087 + ... + 18949.

It is an arithmetic number, because the mean of its divisors is an integer number (6306048).

Almost surely, 2^65740534 is an apocalyptic number.

65740534 is a deficient number, since it is larger than the sum of its proper divisors (35156234).

65740534 is a wasteful number, since it uses less digits than its factorization.

65740534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 65740534 is about 8108.0536505378. The cubic root of 65740534 is about 403.5937285941.

The spelling of 65740534 in words is "sixty-five million, seven hundred forty thousand, five hundred thirty-four".