65422172 has 6 divisors (see below), whose sum is σ = 114488808. Its totient is φ = 32711084.

The previous prime is 65422153. The next prime is 65422207. The reversal of 65422172 is 27122456.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8177768 + ... + 8177775.

It is an arithmetic number, because the mean of its divisors is an integer number (19081468).

Almost surely, 2^65422172 is an apocalyptic number.

It is an amenable number.

65422172 is a deficient number, since it is larger than the sum of its proper divisors (49066636).

65422172 is a wasteful number, since it uses less digits than its factorization.

65422172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16355547 (or 16355545 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 65422172 is about 8088.3973690713. The cubic root of 65422172 is about 402.9411789929.

The spelling of 65422172 in words is "sixty-five million, four hundred twenty-two thousand, one hundred seventy-two".