80950813 has 8 divisors (see below), whose sum is σ = 82303200. Its totient is φ = 79607568.

The previous prime is 80950759. The next prime is 80950817. The reversal of 80950813 is 31805908.

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

It is a cyclic number.

It is not a de Polignac number, because 80950813 - 2¹³ = 80942621 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 (80950817) 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, 16878 + ... + 21136.

It is an arithmetic number, because the mean of its divisors is an integer number (10287900).

Almost surely, 2^80950813 is an apocalyptic number.

80950813 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

80950813 is a deficient number, since it is larger than the sum of its proper divisors (1352387).

80950813 is a wasteful number, since it uses less digits than its factorization.

80950813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 80950813 is about 8997.2669739205. The cubic root of 80950813 is about 432.5872731986.

The spelling of 80950813 in words is "eighty million, nine hundred fifty thousand, eight hundred thirteen".