63474979 has 2 divisors, whose sum is σ = 63474980. Its totient is φ = 63474978.

The previous prime is 63474967. The next prime is 63475019. The reversal of 63474979 is 97947436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63474979 - 2⁵ = 63474947 is a prime.

It is not a weakly prime, because it can be changed into another prime (63474479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31737489 + 31737490.

It is an arithmetic number, because the mean of its divisors is an integer number (31737490).

Almost surely, 2^63474979 is an apocalyptic number.

63474979 is a deficient number, since it is larger than the sum of its proper divisors (1).

63474979 is an equidigital number, since it uses as much as digits as its factorization.

63474979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 49.

The square root of 63474979 is about 7967.1186134010. The cubic root of 63474979 is about 398.9032015818.

The spelling of 63474979 in words is "sixty-three million, four hundred seventy-four thousand, nine hundred seventy-nine".