80993699 has 8 divisors (see below), whose sum is σ = 82987632. Its totient is φ = 79017120.

The previous prime is 80993683. The next prime is 80993761. The reversal of 80993699 is 99639908.

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 80993699 - 2⁴ = 80993683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80993699.

It is not an unprimeable number, because it can be changed into a prime (80993659) 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, 5372 + ... + 13814.

It is an arithmetic number, because the mean of its divisors is an integer number (10373454).

Almost surely, 2^80993699 is an apocalyptic number.

80993699 is a deficient number, since it is larger than the sum of its proper divisors (1993933).

80993699 is a wasteful number, since it uses less digits than its factorization.

80993699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8677.

The product of its (nonzero) digits is 944784, while the sum is 53.

The square root of 80993699 is about 8999.6499376365. The cubic root of 80993699 is about 432.6636515241.

The spelling of 80993699 in words is "eighty million, nine hundred ninety-three thousand, six hundred ninety-nine".