76499957 has 2 divisors, whose sum is σ = 76499958. Its totient is φ = 76499956.

The previous prime is 76499933. The next prime is 76500007. The reversal of 76499957 is 75999467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74063236 + 2436721 = 8606^2 + 1561^2 .

It is a cyclic number.

It is not a de Polignac number, because 76499957 - 2²⁶ = 9391093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76499257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38249978 + 38249979.

It is an arithmetic number, because the mean of its divisors is an integer number (38249979).

Almost surely, 2^76499957 is an apocalyptic number.

It is an amenable number.

76499957 is a deficient number, since it is larger than the sum of its proper divisors (1).

76499957 is an equidigital number, since it uses as much as digits as its factorization.

76499957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 56.

The square root of 76499957 is about 8746.4253841212. The cubic root of 76499957 is about 424.5091579011.

The spelling of 76499957 in words is "seventy-six million, four hundred ninety-nine thousand, nine hundred fifty-seven".