76798981 has 16 divisors (see below), whose sum is σ = 89740800. Its totient is φ = 64366848.

The previous prime is 76798957. The next prime is 76799011. The reversal of 76798981 is 18989767.

It is not a de Polignac number, because 76798981 - 2⁵ = 76798949 is a prime.

It is a super-2 number, since 2×76798981² = 11796166965276722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76798181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61875 + ... + 63103.

It is an arithmetic number, because the mean of its divisors is an integer number (5608800).

Almost surely, 2^76798981 is an apocalyptic number.

It is an amenable number.

76798981 is a deficient number, since it is larger than the sum of its proper divisors (12941819).

76798981 is a wasteful number, since it uses less digits than its factorization.

76798981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428.

The product of its digits is 1524096, while the sum is 55.

The square root of 76798981 is about 8763.5027814225. The cubic root of 76798981 is about 425.0615477184.

The spelling of 76798981 in words is "seventy-six million, seven hundred ninety-eight thousand, nine hundred eighty-one".