76887479 has 2 divisors, whose sum is σ = 76887480. Its totient is φ = 76887478.

The previous prime is 76887353. The next prime is 76887491. The reversal of 76887479 is 97478867.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76887479 - 2¹² = 76883383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76887079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38443739 + 38443740.

It is an arithmetic number, because the mean of its divisors is an integer number (38443740).

Almost surely, 2^76887479 is an apocalyptic number.

76887479 is a deficient number, since it is larger than the sum of its proper divisors (1).

76887479 is an equidigital number, since it uses as much as digits as its factorization.

76887479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4741632, while the sum is 56.

The square root of 76887479 is about 8768.5505643749. The cubic root of 76887479 is about 425.2247558602.

The spelling of 76887479 in words is "seventy-six million, eight hundred eighty-seven thousand, four hundred seventy-nine".