65921734 has 8 divisors (see below), whose sum is σ = 99159120. Its totient is φ = 32868696.

The previous prime is 65921729. The next prime is 65921759. The reversal of 65921734 is 43712956.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 65921693 and 65921702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45189 + ... + 46624.

It is an arithmetic number, because the mean of its divisors is an integer number (12394890).

Almost surely, 2^65921734 is an apocalyptic number.

65921734 is a deficient number, since it is larger than the sum of its proper divisors (33237386).

65921734 is a wasteful number, since it uses less digits than its factorization.

65921734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92174.

The product of its digits is 45360, while the sum is 37.

The square root of 65921734 is about 8119.2200364321. The cubic root of 65921734 is about 403.9641955983.

The spelling of 65921734 in words is "sixty-five million, nine hundred twenty-one thousand, seven hundred thirty-four".