80997051 has 8 divisors (see below), whose sum is σ = 109065744. Its totient is φ = 53463200.

The previous prime is 80997023. The next prime is 80997067. The reversal of 80997051 is 15079908.

It is a happy number.

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-80997051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80997751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133356 + ... + 133961.

It is an arithmetic number, because the mean of its divisors is an integer number (13633218).

Almost surely, 2^80997051 is an apocalyptic number.

80997051 is a deficient number, since it is larger than the sum of its proper divisors (28068693).

80997051 is a wasteful number, since it uses less digits than its factorization.

80997051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267421.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 80997051 is about 8999.8361651755. The cubic root of 80997051 is about 432.6696201717.

The spelling of 80997051 in words is "eighty million, nine hundred ninety-seven thousand, fifty-one".