64874633 has 2 divisors, whose sum is σ = 64874634. Its totient is φ = 64874632.

The previous prime is 64874629. The next prime is 64874647. The reversal of 64874633 is 33647846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64770304 + 104329 = 8048^2 + 323^2 .

It is a cyclic number.

It is not a de Polignac number, because 64874633 - 2² = 64874629 is a prime.

It is not a weakly prime, because it can be changed into another prime (64874603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32437316 + 32437317.

It is an arithmetic number, because the mean of its divisors is an integer number (32437317).

Almost surely, 2^64874633 is an apocalyptic number.

It is an amenable number.

64874633 is a deficient number, since it is larger than the sum of its proper divisors (1).

64874633 is an equidigital number, since it uses as much as digits as its factorization.

64874633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 41.

The square root of 64874633 is about 8054.4790644709. The cubic root of 64874633 is about 401.8139139399.

The spelling of 64874633 in words is "sixty-four million, eight hundred seventy-four thousand, six hundred thirty-three".