64724966 has 4 divisors (see below), whose sum is σ = 97087452. Its totient is φ = 32362482.

The previous prime is 64724929. The next prime is 64724971. The reversal of 64724966 is 66942746.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16181240 + ... + 16181243.

It is an arithmetic number, because the mean of its divisors is an integer number (24271863).

Almost surely, 2^64724966 is an apocalyptic number.

64724966 is a deficient number, since it is larger than the sum of its proper divisors (32362486).

64724966 is a wasteful number, since it uses less digits than its factorization.

64724966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32362485.

The product of its digits is 435456, while the sum is 44.

The square root of 64724966 is about 8045.1827822617. The cubic root of 64724966 is about 401.5046785919.

The spelling of 64724966 in words is "sixty-four million, seven hundred twenty-four thousand, nine hundred sixty-six".