80863990 has 8 divisors (see below), whose sum is σ = 145555200. Its totient is φ = 32345592.

The previous prime is 80863987. The next prime is 80863997. The reversal of 80863990 is 9936808.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80863997) 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, 4043190 + ... + 4043209.

It is an arithmetic number, because the mean of its divisors is an integer number (18194400).

Almost surely, 2^80863990 is an apocalyptic number.

80863990 is a deficient number, since it is larger than the sum of its proper divisors (64691210).

80863990 is a wasteful number, since it uses less digits than its factorization.

80863990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8086406.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 80863990 is about 8992.4407142889. The cubic root of 80863990 is about 432.4325621294.

The spelling of 80863990 in words is "eighty million, eight hundred sixty-three thousand, nine hundred ninety".