64012577 has 4 divisors (see below), whose sum is σ = 67381680. Its totient is φ = 60643476.

The previous prime is 64012573. The next prime is 64012591. The reversal of 64012577 is 77521046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64012577 - 2² = 64012573 is a prime.

It is a super-2 number, since 2×64012577² = 8195220028361858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64012573) 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, 1684523 + ... + 1684560.

It is an arithmetic number, because the mean of its divisors is an integer number (16845420).

Almost surely, 2^64012577 is an apocalyptic number.

It is an amenable number.

64012577 is a deficient number, since it is larger than the sum of its proper divisors (3369103).

64012577 is a wasteful number, since it uses less digits than its factorization.

64012577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369102.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 64012577 is about 8000.7860238854. The cubic root of 64012577 is about 400.0262003671.

The spelling of 64012577 in words is "sixty-four million, twelve thousand, five hundred seventy-seven".