64996877 has 4 divisors (see below), whose sum is σ = 70905696. Its totient is φ = 59088060.

The previous prime is 64996861. The next prime is 64996889. The reversal of 64996877 is 77869946.

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 64996877 - 2⁴ = 64996861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64996807) 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, 2954393 + ... + 2954414.

It is an arithmetic number, because the mean of its divisors is an integer number (17726424).

Almost surely, 2^64996877 is an apocalyptic number.

It is an amenable number.

64996877 is a deficient number, since it is larger than the sum of its proper divisors (5908819).

64996877 is a wasteful number, since it uses less digits than its factorization.

64996877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5908818.

The product of its digits is 4572288, while the sum is 56.

The square root of 64996877 is about 8062.0640657340. The cubic root of 64996877 is about 402.0661364088.

The spelling of 64996877 in words is "sixty-four million, nine hundred ninety-six thousand, eight hundred seventy-seven".