64607474 has 4 divisors (see below), whose sum is σ = 96911214. Its totient is φ = 32303736.

The previous prime is 64607423. The next prime is 64607489. The reversal of 64607474 is 47470646.

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., 58140625 + 6466849 = 7625^2 + 2543^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16151867 + ... + 16151870.

Almost surely, 2^64607474 is an apocalyptic number.

64607474 is a deficient number, since it is larger than the sum of its proper divisors (32303740).

64607474 is a wasteful number, since it uses less digits than its factorization.

64607474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32303739.

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 64607474 is about 8037.8774561448. The cubic root of 64607474 is about 401.2615876417.

The spelling of 64607474 in words is "sixty-four million, six hundred seven thousand, four hundred seventy-four".