64611371 has 4 divisors (see below), whose sum is σ = 70485144. Its totient is φ = 58737600.

The previous prime is 64611341. The next prime is 64611461. The reversal of 64611371 is 17311646.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64611371 - 2⁶ = 64611307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64611331) 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, 2936870 + ... + 2936891.

It is an arithmetic number, because the mean of its divisors is an integer number (17621286).

Almost surely, 2^64611371 is an apocalyptic number.

64611371 is a deficient number, since it is larger than the sum of its proper divisors (5873773).

64611371 is a wasteful number, since it uses less digits than its factorization.

64611371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5873772.

The product of its digits is 3024, while the sum is 29.

The square root of 64611371 is about 8038.1198672326. The cubic root of 64611371 is about 401.2696552582.

The spelling of 64611371 in words is "sixty-four million, six hundred eleven thousand, three hundred seventy-one".