64904111 has 8 divisors (see below), whose sum is σ = 67651584. Its totient is φ = 62197560.

The previous prime is 64904101. The next prime is 64904131. The reversal of 64904111 is 11140946.

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

It is a cyclic number.

It is not a de Polignac number, because 64904111 - 2¹⁴ = 64887727 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 (64904101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6971 + ... + 13356.

It is an arithmetic number, because the mean of its divisors is an integer number (8456448).

Almost surely, 2^64904111 is an apocalyptic number.

64904111 is a deficient number, since it is larger than the sum of its proper divisors (2747473).

64904111 is a wasteful number, since it uses less digits than its factorization.

64904111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20461.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 64904111 is about 8056.3087701503. The cubic root of 64904111 is about 401.8747640054.

It can be divided in two parts, 6490 and 4111, that added together give a palindrome (10601).

The spelling of 64904111 in words is "sixty-four million, nine hundred four thousand, one hundred eleven".