79783487 has 16 divisors (see below), whose sum is σ = 93560832. Its totient is φ = 66615360.

The previous prime is 79783471. The next prime is 79783493. The reversal of 79783487 is 78438797.

It is not a de Polignac number, because 79783487 - 2⁴ = 79783471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79783687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92018 + ... + 92880.

It is an arithmetic number, because the mean of its divisors is an integer number (5847552).

Almost surely, 2^79783487 is an apocalyptic number.

79783487 is a deficient number, since it is larger than the sum of its proper divisors (13777345).

79783487 is a wasteful number, since it uses less digits than its factorization.

79783487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198.

The product of its digits is 2370816, while the sum is 53.

The square root of 79783487 is about 8932.1602650199. The cubic root of 79783487 is about 430.4978675349.

The spelling of 79783487 in words is "seventy-nine million, seven hundred eighty-three thousand, four hundred eighty-seven".