76867021 has 8 divisors (see below), whose sum is σ = 95834304. Its totient is φ = 59896320.

The previous prime is 76866991. The next prime is 76867031. The reversal of 76867021 is 12076867.

It is a happy number.

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

It is not a de Polignac number, because 76867021 - 2⁹ = 76866509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76867031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499060 + ... + 499213.

It is an arithmetic number, because the mean of its divisors is an integer number (11979288).

Almost surely, 2^76867021 is an apocalyptic number.

It is an amenable number.

76867021 is a deficient number, since it is larger than the sum of its proper divisors (18967283).

76867021 is a wasteful number, since it uses less digits than its factorization.

76867021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998291.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 76867021 is about 8767.3839313674. The cubic root of 76867021 is about 425.1870383201.

The spelling of 76867021 in words is "seventy-six million, eight hundred sixty-seven thousand, twenty-one".