64469722 has 4 divisors (see below), whose sum is σ = 96704586. Its totient is φ = 32234860.

The previous prime is 64469719. The next prime is 64469791. The reversal of 64469722 is 22796446.

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., 40056241 + 24413481 = 6329^2 + 4941^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16117429 + ... + 16117432.

Almost surely, 2^64469722 is an apocalyptic number.

64469722 is a deficient number, since it is larger than the sum of its proper divisors (32234864).

64469722 is a wasteful number, since it uses less digits than its factorization.

64469722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32234863.

The product of its digits is 145152, while the sum is 40.

The square root of 64469722 is about 8029.3039548892. The cubic root of 64469722 is about 400.9762031305.

The spelling of 64469722 in words is "sixty-four million, four hundred sixty-nine thousand, seven hundred twenty-two".