76989427 has 2 divisors, whose sum is σ = 76989428. Its totient is φ = 76989426.

The previous prime is 76989421. The next prime is 76989433. The reversal of 76989427 is 72498967.

It is a balanced prime because it is at equal distance from previous prime (76989421) and next prime (76989433).

It is a cyclic number.

It is not a de Polignac number, because 76989427 - 2⁷ = 76989299 is a prime.

It is not a weakly prime, because it can be changed into another prime (76989421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38494713 + 38494714.

It is an arithmetic number, because the mean of its divisors is an integer number (38494714).

Almost surely, 2^76989427 is an apocalyptic number.

76989427 is a deficient number, since it is larger than the sum of its proper divisors (1).

76989427 is an equidigital number, since it uses as much as digits as its factorization.

76989427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 52.

The square root of 76989427 is about 8774.3619141223. The cubic root of 76989427 is about 425.4126133542.

The spelling of 76989427 in words is "seventy-six million, nine hundred eighty-nine thousand, four hundred twenty-seven".