76828891 has 2 divisors, whose sum is σ = 76828892. Its totient is φ = 76828890.

The previous prime is 76828849. The next prime is 76828897. The reversal of 76828891 is 19882867.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76828891 - 2⁹ = 76828379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76828897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38414445 + 38414446.

It is an arithmetic number, because the mean of its divisors is an integer number (38414446).

Almost surely, 2^76828891 is an apocalyptic number.

76828891 is a deficient number, since it is larger than the sum of its proper divisors (1).

76828891 is an equidigital number, since it uses as much as digits as its factorization.

76828891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 49.

The square root of 76828891 is about 8765.2091247157. The cubic root of 76828891 is about 425.1167218045.

The spelling of 76828891 in words is "seventy-six million, eight hundred twenty-eight thousand, eight hundred ninety-one".