80089642 has 4 divisors (see below), whose sum is σ = 120134466. Its totient is φ = 40044820.

The previous prime is 80089637. The next prime is 80089643. The reversal of 80089642 is 24698008.

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

It can be written as a sum of positive squares in only one way, i.e., 80084601 + 5041 = 8949^2 + 71^2 .

It is not an unprimeable number, because it can be changed into a prime (80089643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20022409 + ... + 20022412.

Almost surely, 2^80089642 is an apocalyptic number.

80089642 is a deficient number, since it is larger than the sum of its proper divisors (40044824).

80089642 is a wasteful number, since it uses less digits than its factorization.

80089642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40044823.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 80089642 is about 8949.2816471491. The cubic root of 80089642 is about 431.0478177935.

The spelling of 80089642 in words is "eighty million, eighty-nine thousand, six hundred forty-two".