76166399 has 2 divisors, whose sum is σ = 76166400. Its totient is φ = 76166398.

The previous prime is 76166371. The next prime is 76166401. The reversal of 76166399 is 99366167.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (99366167) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76166399 - 2⁸ = 76166143 is a prime.

Together with 76166401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76166309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38083199 + 38083200.

It is an arithmetic number, because the mean of its divisors is an integer number (38083200).

Almost surely, 2^76166399 is an apocalyptic number.

76166399 is a deficient number, since it is larger than the sum of its proper divisors (1).

76166399 is an equidigital number, since it uses as much as digits as its factorization.

76166399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 47.

The square root of 76166399 is about 8727.3363061131. The cubic root of 76166399 is about 423.8912720348.

The spelling of 76166399 in words is "seventy-six million, one hundred sixty-six thousand, three hundred ninety-nine".