76840331 has 2 divisors, whose sum is σ = 76840332. Its totient is φ = 76840330.

The previous prime is 76840327. The next prime is 76840333. The reversal of 76840331 is 13304867.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76840331 - 2² = 76840327 is a prime.

It is a super-2 number, since 2×76840331² = 11808872936379122, which contains 22 as substring.

Together with 76840333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76840333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38420165 + 38420166.

It is an arithmetic number, because the mean of its divisors is an integer number (38420166).

Almost surely, 2^76840331 is an apocalyptic number.

76840331 is a deficient number, since it is larger than the sum of its proper divisors (1).

76840331 is an equidigital number, since it uses as much as digits as its factorization.

76840331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 76840331 is about 8765.8616804054. The cubic root of 76840331 is about 425.1378210458.

The spelling of 76840331 in words is "seventy-six million, eight hundred forty thousand, three hundred thirty-one".