64480877 has 4 divisors (see below), whose sum is σ = 64510656. Its totient is φ = 64451100.

The previous prime is 64480873. The next prime is 64480901. The reversal of 64480877 is 77808446.

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 64480877 - 2² = 64480873 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 (64480873) 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, 11363 + ... + 16064.

It is an arithmetic number, because the mean of its divisors is an integer number (16127664).

Almost surely, 2^64480877 is an apocalyptic number.

It is an amenable number.

64480877 is a deficient number, since it is larger than the sum of its proper divisors (29779).

64480877 is a wasteful number, since it uses less digits than its factorization.

64480877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29778.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 64480877 is about 8029.9985678704. The cubic root of 64480877 is about 400.9993283613. Note that the first 3 decimals are identical.

The spelling of 64480877 in words is "sixty-four million, four hundred eighty thousand, eight hundred seventy-seven".