63164791 has 2 divisors, whose sum is σ = 63164792. Its totient is φ = 63164790.

The previous prime is 63164779. The next prime is 63164819. The reversal of 63164791 is 19746136.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63164791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63164791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63164771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31582395 + 31582396.

It is an arithmetic number, because the mean of its divisors is an integer number (31582396).

Almost surely, 2^63164791 is an apocalyptic number.

63164791 is a deficient number, since it is larger than the sum of its proper divisors (1).

63164791 is an equidigital number, since it uses as much as digits as its factorization.

63164791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 63164791 is about 7947.6280109225. The cubic root of 63164791 is about 398.2523567278.

The spelling of 63164791 in words is "sixty-three million, one hundred sixty-four thousand, seven hundred ninety-one".