64061744 has 20 divisors (see below), whose sum is σ = 127007496. Its totient is φ = 31285632.

The previous prime is 64061743. The next prime is 64061759. The reversal of 64061744 is 44716046.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 64061744.

It is not an unprimeable number, because it can be changed into a prime (64061743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45869 + ... + 47244.

Almost surely, 2^64061744 is an apocalyptic number.

It is an amenable number.

64061744 is a deficient number, since it is larger than the sum of its proper divisors (62945752).

64061744 is a wasteful number, since it uses less digits than its factorization.

64061744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93164 (or 93158 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 64061744 is about 8003.8580697061. The cubic root of 64061744 is about 400.1285919892.

The spelling of 64061744 in words is "sixty-four million, sixty-one thousand, seven hundred forty-four".