64874867 has 4 divisors (see below), whose sum is σ = 64892160. Its totient is φ = 64857576.

The previous prime is 64874851. The next prime is 64874891. The reversal of 64874867 is 76847846.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76847846 = 2 ⋅38423923.

It is a cyclic number.

It is not a de Polignac number, because 64874867 - 2⁴ = 64874851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64871867) 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, 392 + ... + 11397.

It is an arithmetic number, because the mean of its divisors is an integer number (16223040).

Almost surely, 2^64874867 is an apocalyptic number.

64874867 is a deficient number, since it is larger than the sum of its proper divisors (17293).

64874867 is a wasteful number, since it uses less digits than its factorization.

64874867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17292.

The product of its digits is 1806336, while the sum is 50.

The square root of 64874867 is about 8054.4935905369. The cubic root of 64874867 is about 401.8143970478.

The spelling of 64874867 in words is "sixty-four million, eight hundred seventy-four thousand, eight hundred sixty-seven".