64171048 has 8 divisors (see below), whose sum is σ = 120320730. Its totient is φ = 32085520.

The previous prime is 64171031. The next prime is 64171069. The reversal of 64171048 is 84017146.

It can be written as a sum of positive squares in only one way, i.e., 57729604 + 6441444 = 7598^2 + 2538^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4010683 + ... + 4010698.

Almost surely, 2^64171048 is an apocalyptic number.

It is an amenable number.

64171048 is a deficient number, since it is larger than the sum of its proper divisors (56149682).

64171048 is a wasteful number, since it uses less digits than its factorization.

64171048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8021387 (or 8021383 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 64171048 is about 8010.6833666049. The cubic root of 64171048 is about 400.3560330072.

The spelling of 64171048 in words is "sixty-four million, one hundred seventy-one thousand, forty-eight".