80608581 has 8 divisors (see below), whose sum is σ = 119420160. Its totient is φ = 53739036.

The previous prime is 80608559. The next prime is 80608589. The reversal of 80608581 is 18580608.

It is not a de Polignac number, because 80608581 - 2¹³ = 80600389 is a prime.

It is a super-2 number, since 2×80608581² = 12995486661667122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80608589) 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, 1492725 + ... + 1492778.

It is an arithmetic number, because the mean of its divisors is an integer number (14927520).

Almost surely, 2^80608581 is an apocalyptic number.

It is an amenable number.

80608581 is a deficient number, since it is larger than the sum of its proper divisors (38811579).

80608581 is a wasteful number, since it uses less digits than its factorization.

80608581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985512 (or 2985506 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 80608581 is about 8978.2281659579. The cubic root of 80608581 is about 431.9768023809.

It can be divided in two parts, 8060 and 8581, that added together give a square (16641 = 129²).

The spelling of 80608581 in words is "eighty million, six hundred eight thousand, five hundred eighty-one".