64215092 has 6 divisors (see below), whose sum is σ = 112376418. Its totient is φ = 32107544.

The previous prime is 64215029. The next prime is 64215097. The reversal of 64215092 is 29051246.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 51782416 + 12432676 = 7196^2 + 3526^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64215097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8026883 + ... + 8026890.

It is an arithmetic number, because the mean of its divisors is an integer number (18729403).

Almost surely, 2^64215092 is an apocalyptic number.

It is an amenable number.

64215092 is a deficient number, since it is larger than the sum of its proper divisors (48161326).

64215092 is a wasteful number, since it uses less digits than its factorization.

64215092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16053777 (or 16053775 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 64215092 is about 8013.4319738799. The cubic root of 64215092 is about 400.4476072658.

The spelling of 64215092 in words is "sixty-four million, two hundred fifteen thousand, ninety-two".