80091642 has 16 divisors (see below), whose sum is σ = 160386912. Its totient is φ = 26663280.

The previous prime is 80091637. The next prime is 80091647. The reversal of 80091642 is 24619008.

It is an interprime number because it is at equal distance from previous prime (80091637) and next prime (80091647).

It is a super-3 number, since 3×80091642³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (80091647) 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, 3109 + ... + 13032.

It is an arithmetic number, because the mean of its divisors is an integer number (10024182).

Almost surely, 2^80091642 is an apocalyptic number.

80091642 is an abundant number, since it is smaller than the sum of its proper divisors (80295270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80091642 is a wasteful number, since it uses less digits than its factorization.

80091642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16973.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 80091642 is about 8949.3933872637. The cubic root of 80091642 is about 431.0514058082.

The spelling of 80091642 in words is "eighty million, ninety-one thousand, six hundred forty-two".