64336274 has 4 divisors (see below), whose sum is σ = 96504414. Its totient is φ = 32168136.

The previous prime is 64336243. The next prime is 64336277. The reversal of 64336274 is 47263346.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44023225 + 20313049 = 6635^2 + 4507^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64336277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16084067 + ... + 16084070.

Almost surely, 2^64336274 is an apocalyptic number.

64336274 is a deficient number, since it is larger than the sum of its proper divisors (32168140).

64336274 is a wasteful number, since it uses less digits than its factorization.

64336274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32168139.

The product of its digits is 72576, while the sum is 35.

The square root of 64336274 is about 8020.9895898199. The cubic root of 64336274 is about 400.6993474038.

The spelling of 64336274 in words is "sixty-four million, three hundred thirty-six thousand, two hundred seventy-four".