64980795 has 32 divisors (see below), whose sum is σ = 113840640. Its totient is φ = 31389440.

The previous prime is 64980791. The next prime is 64980803. The reversal of 64980795 is 59708946.

It is not a de Polignac number, because 64980795 - 2² = 64980791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64980791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58687 + ... + 59783.

It is an arithmetic number, because the mean of its divisors is an integer number (3557520).

Almost surely, 2^64980795 is an apocalyptic number.

64980795 is the 6582-nd pentagonal number.

64980795 is a deficient number, since it is larger than the sum of its proper divisors (48859845).

64980795 is a wasteful number, since it uses less digits than its factorization.

64980795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 64980795 is about 8061.0666167698. The cubic root of 64980795 is about 402.0329729643.

The spelling of 64980795 in words is "sixty-four million, nine hundred eighty thousand, seven hundred ninety-five".