80604691 has 4 divisors (see below), whose sum is σ = 80836000. Its totient is φ = 80373384.

The previous prime is 80604677. The next prime is 80604697. The reversal of 80604691 is 19640608.

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 80604691 - 2⁹ = 80604179 is a prime.

It is a super-2 number, since 2×80604691² = 12994232422410962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80604697) 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, 115131 + ... + 115828.

It is an arithmetic number, because the mean of its divisors is an integer number (20209000).

Almost surely, 2^80604691 is an apocalyptic number.

80604691 is a deficient number, since it is larger than the sum of its proper divisors (231309).

80604691 is a wasteful number, since it uses less digits than its factorization.

80604691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231308.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 80604691 is about 8978.0115281726. The cubic root of 80604691 is about 431.9698535062.

The spelling of 80604691 in words is "eighty million, six hundred four thousand, six hundred ninety-one".