63374809 has 2 divisors, whose sum is σ = 63374810. Its totient is φ = 63374808.

The previous prime is 63374789. The next prime is 63374863. The reversal of 63374809 is 90847336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34987225 + 28387584 = 5915^2 + 5328^2 .

It is a cyclic number.

It is not a de Polignac number, because 63374809 - 2⁷ = 63374681 is a prime.

It is not a weakly prime, because it can be changed into another prime (63374869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31687404 + 31687405.

It is an arithmetic number, because the mean of its divisors is an integer number (31687405).

Almost surely, 2^63374809 is an apocalyptic number.

It is an amenable number.

63374809 is a deficient number, since it is larger than the sum of its proper divisors (1).

63374809 is an equidigital number, since it uses as much as digits as its factorization.

63374809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 63374809 is about 7960.8296678173. The cubic root of 63374809 is about 398.6932544388.

The spelling of 63374809 in words is "sixty-three million, three hundred seventy-four thousand, eight hundred nine".