867980401 has 4 divisors (see below), whose sum is σ = 913663600. Its totient is φ = 822297204.

The previous prime is 867980389. The next prime is 867980419. The reversal of 867980401 is 104089768.

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 867980401 - 2⁵ = 867980369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (867980461) 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, 22841571 + ... + 22841608.

It is an arithmetic number, because the mean of its divisors is an integer number (228415900).

Almost surely, 2^867980401 is an apocalyptic number.

It is an amenable number.

867980401 is a deficient number, since it is larger than the sum of its proper divisors (45683199).

867980401 is a wasteful number, since it uses less digits than its factorization.

867980401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45683198.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 867980401 is about 29461.5071067317. The cubic root of 867980401 is about 953.9010049097.

The spelling of 867980401 in words is "eight hundred sixty-seven million, nine hundred eighty thousand, four hundred one".