76631449 has 2 divisors, whose sum is σ = 76631450. Its totient is φ = 76631448.

The previous prime is 76631437. The next prime is 76631453. The reversal of 76631449 is 94413667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69422224 + 7209225 = 8332^2 + 2685^2 .

It is a cyclic number.

It is not a de Polignac number, because 76631449 - 2⁵ = 76631417 is a prime.

It is not a weakly prime, because it can be changed into another prime (76631459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38315724 + 38315725.

It is an arithmetic number, because the mean of its divisors is an integer number (38315725).

Almost surely, 2^76631449 is an apocalyptic number.

It is an amenable number.

76631449 is a deficient number, since it is larger than the sum of its proper divisors (1).

76631449 is an equidigital number, since it uses as much as digits as its factorization.

76631449 is an evil number, because the sum of its binary digits is even.

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

The square root of 76631449 is about 8753.9390562192. The cubic root of 76631449 is about 424.7522412920.

The spelling of 76631449 in words is "seventy-six million, six hundred thirty-one thousand, four hundred forty-nine".