79487642 has 16 divisors (see below), whose sum is σ = 128550912. Its totient is φ = 36644400.

The previous prime is 79487641. The next prime is 79487657. The reversal of 79487642 is 24678497.

It is not an unprimeable number, because it can be changed into a prime (79487641) 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, 39767 + ... + 41717.

It is an arithmetic number, because the mean of its divisors is an integer number (8034432).

Almost surely, 2^79487642 is an apocalyptic number.

79487642 is a deficient number, since it is larger than the sum of its proper divisors (49063270).

79487642 is a wasteful number, since it uses less digits than its factorization.

79487642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3533.

The product of its digits is 677376, while the sum is 47.

The square root of 79487642 is about 8915.5842209022. The cubic root of 79487642 is about 429.9650990242.

The spelling of 79487642 in words is "seventy-nine million, four hundred eighty-seven thousand, six hundred forty-two".