64374047 has 2 divisors, whose sum is σ = 64374048. Its totient is φ = 64374046.

The previous prime is 64374041. The next prime is 64374061. The reversal of 64374047 is 74047346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64374047 - 2⁴ = 64374031 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64373998 and 64374016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64374041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32187023 + 32187024.

It is an arithmetic number, because the mean of its divisors is an integer number (32187024).

Almost surely, 2^64374047 is an apocalyptic number.

64374047 is a deficient number, since it is larger than the sum of its proper divisors (1).

64374047 is an equidigital number, since it uses as much as digits as its factorization.

64374047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 35.

The square root of 64374047 is about 8023.3438789572. The cubic root of 64374047 is about 400.7777513603. Note that the first 4 decimals are identical.

The spelling of 64374047 in words is "sixty-four million, three hundred seventy-four thousand, forty-seven".