76798987 has 8 divisors (see below), whose sum is σ = 79382016. Its totient is φ = 74255592.

The previous prime is 76798957. The next prime is 76799011. The reversal of 76798987 is 78989767.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76798987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76798907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5943 + ... + 13744.

It is an arithmetic number, because the mean of its divisors is an integer number (9922752).

Almost surely, 2^76798987 is an apocalyptic number.

76798987 is a deficient number, since it is larger than the sum of its proper divisors (2583029).

76798987 is a wasteful number, since it uses less digits than its factorization.

76798987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19817.

The product of its digits is 10668672, while the sum is 61.

The square root of 76798987 is about 8763.5031237514. The cubic root of 76798987 is about 425.0615587879.

The spelling of 76798987 in words is "seventy-six million, seven hundred ninety-eight thousand, nine hundred eighty-seven".