80631299 has 4 divisors (see below), whose sum is σ = 92150064. Its totient is φ = 69112536.

The previous prime is 80631253. The next prime is 80631301. The reversal of 80631299 is 99213608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80631299 - 2⁸ = 80631043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80631209) 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, 5759372 + ... + 5759385.

It is an arithmetic number, because the mean of its divisors is an integer number (23037516).

Almost surely, 2^80631299 is an apocalyptic number.

80631299 is a deficient number, since it is larger than the sum of its proper divisors (11518765).

80631299 is a wasteful number, since it uses less digits than its factorization.

80631299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11518764.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 80631299 is about 8979.4932485080. The cubic root of 80631299 is about 432.0173800592.

The spelling of 80631299 in words is "eighty million, six hundred thirty-one thousand, two hundred ninety-nine".