79870287 has 8 divisors (see below), whose sum is σ = 121707136. Its totient is φ = 45640152.

The previous prime is 79870277. The next prime is 79870327. The reversal of 79870287 is 78207897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79870287 - 2⁶ = 79870223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79870277) 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, 1901653 + ... + 1901694.

It is an arithmetic number, because the mean of its divisors is an integer number (15213392).

Almost surely, 2^79870287 is an apocalyptic number.

79870287 is a deficient number, since it is larger than the sum of its proper divisors (41836849).

79870287 is a wasteful number, since it uses less digits than its factorization.

79870287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803357.

The product of its (nonzero) digits is 395136, while the sum is 48.

The square root of 79870287 is about 8937.0177911874. The cubic root of 79870287 is about 430.6539302046.

The spelling of 79870287 in words is "seventy-nine million, eight hundred seventy thousand, two hundred eighty-seven".