64853091 has 24 divisors (see below), whose sum is σ = 96445440. Its totient is φ = 41972976.

The previous prime is 64853071. The next prime is 64853167. The reversal of 64853091 is 19035846.

64853091 is a `hidden beast` number, since 648 + 5 + 3 + 0 + 9 + 1 = 666.

It is not a de Polignac number, because 64853091 - 2⁶ = 64853027 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64853051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58246 + ... + 59348.

It is an arithmetic number, because the mean of its divisors is an integer number (4018560).

Almost surely, 2^64853091 is an apocalyptic number.

64853091 is a deficient number, since it is larger than the sum of its proper divisors (31592349).

64853091 is a wasteful number, since it uses less digits than its factorization.

64853091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 64853091 is about 8053.1416850817. The cubic root of 64853091 is about 401.7694341323.

The spelling of 64853091 in words is "sixty-four million, eight hundred fifty-three thousand, ninety-one".