80798723 has 4 divisors (see below), whose sum is σ = 81099360. Its totient is φ = 80498088.

The previous prime is 80798681. The next prime is 80798743. The reversal of 80798723 is 32789708.

It is a happy number.

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 80798723 - 2¹⁸ = 80536579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80798743) 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, 149915 + ... + 150452.

It is an arithmetic number, because the mean of its divisors is an integer number (20274840).

Almost surely, 2^80798723 is an apocalyptic number.

80798723 is a deficient number, since it is larger than the sum of its proper divisors (300637).

80798723 is a wasteful number, since it uses less digits than its factorization.

80798723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300636.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 80798723 is about 8988.8109892243. The cubic root of 80798723 is about 432.3161890577.

The spelling of 80798723 in words is "eighty million, seven hundred ninety-eight thousand, seven hundred twenty-three".