80815467 has 24 divisors (see below), whose sum is σ = 116148816. Its totient is φ = 49809408.

The previous prime is 80815459. The next prime is 80815477. The reversal of 80815467 is 76451808.

It is not a de Polignac number, because 80815467 - 2³ = 80815459 is a prime.

It is a super-2 number, since 2×80815467² = 13062279412856178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80815477) 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 23 ways as a sum of consecutive naturals, for example, 228763 + ... + 229115.

It is an arithmetic number, because the mean of its divisors is an integer number (4839534).

Almost surely, 2^80815467 is an apocalyptic number.

80815467 is a deficient number, since it is larger than the sum of its proper divisors (35333349).

80815467 is a wasteful number, since it uses less digits than its factorization.

80815467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 80815467 is about 8989.7423211124. The cubic root of 80815467 is about 432.3460501002.

The spelling of 80815467 in words is "eighty million, eight hundred fifteen thousand, four hundred sixty-seven".