64738811 has 8 divisors (see below), whose sum is σ = 66263184. Its totient is φ = 63225760.

The previous prime is 64738801. The next prime is 64738831. The reversal of 64738811 is 11883746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64738811 is a prime.

It is a super-2 number, since 2×64738811² = 8382227299387442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64738801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9341 + ... + 14721.

It is an arithmetic number, because the mean of its divisors is an integer number (8282898).

Almost surely, 2^64738811 is an apocalyptic number.

64738811 is a deficient number, since it is larger than the sum of its proper divisors (1524373).

64738811 is a wasteful number, since it uses less digits than its factorization.

64738811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661.

The product of its digits is 32256, while the sum is 38.

The square root of 64738811 is about 8046.0431890464. The cubic root of 64738811 is about 401.5333045164.

The spelling of 64738811 in words is "sixty-four million, seven hundred thirty-eight thousand, eight hundred eleven".