80868901 has 4 divisors (see below), whose sum is σ = 81505792. Its totient is φ = 80232012.

The previous prime is 80868869. The next prime is 80868911. The reversal of 80868901 is 10986808.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80868901 - 2⁵ = 80868869 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 (80868911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318255 + ... + 318508.

It is an arithmetic number, because the mean of its divisors is an integer number (20376448).

Almost surely, 2^80868901 is an apocalyptic number.

It is an amenable number.

80868901 is a deficient number, since it is larger than the sum of its proper divisors (636891).

80868901 is a wasteful number, since it uses less digits than its factorization.

80868901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636890.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 80868901 is about 8992.7137728274. The cubic root of 80868901 is about 432.4413160602.

The spelling of 80868901 in words is "eighty million, eight hundred sixty-eight thousand, nine hundred one".