80623887 has 8 divisors (see below), whose sum is σ = 107570736. Its totient is φ = 53713152.

The previous prime is 80623867. The next prime is 80623889. The reversal of 80623887 is 78832608.

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

It is not a de Polignac number, because 80623887 - 2¹⁰ = 80622863 is a prime.

It is a super-2 number, since 2×80623887² = 13000422309977538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80623889) 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, 3298 + ... + 13119.

It is an arithmetic number, because the mean of its divisors is an integer number (13446342).

Almost surely, 2^80623887 is an apocalyptic number.

80623887 is a deficient number, since it is larger than the sum of its proper divisors (26946849).

80623887 is a wasteful number, since it uses less digits than its factorization.

80623887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18057.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 80623887 is about 8979.0805208551. The cubic root of 80623887 is about 432.0041419785.

The spelling of 80623887 in words is "eighty million, six hundred twenty-three thousand, eight hundred eighty-seven".