64611357 has 4 divisors (see below), whose sum is σ = 86148480. Its totient is φ = 43074236.

The previous prime is 64611341. The next prime is 64611461. The reversal of 64611357 is 75311646.

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 64611357 - 2⁴ = 64611341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64611307) 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, 10768557 + ... + 10768562.

It is an arithmetic number, because the mean of its divisors is an integer number (21537120).

Almost surely, 2^64611357 is an apocalyptic number.

It is an amenable number.

64611357 is a deficient number, since it is larger than the sum of its proper divisors (21537123).

64611357 is a wasteful number, since it uses less digits than its factorization.

64611357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21537122.

The product of its digits is 15120, while the sum is 33.

The square root of 64611357 is about 8038.1189963822. The cubic root of 64611357 is about 401.2696262758.

The spelling of 64611357 in words is "sixty-four million, six hundred eleven thousand, three hundred fifty-seven".