79387087 has 8 divisors (see below), whose sum is σ = 85851920. Its totient is φ = 72973440.

The previous prime is 79387081. The next prime is 79387097. The reversal of 79387087 is 78078397.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 79387087 - 2³ = 79387079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79387087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79387081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9537 + ... + 15802.

It is an arithmetic number, because the mean of its divisors is an integer number (10731490).

Almost surely, 2^79387087 is an apocalyptic number.

79387087 is a deficient number, since it is larger than the sum of its proper divisors (6464833).

79387087 is a wasteful number, since it uses less digits than its factorization.

79387087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25593.

The product of its (nonzero) digits is 592704, while the sum is 49.

The square root of 79387087 is about 8909.9431535785. The cubic root of 79387087 is about 429.7837149178.

The spelling of 79387087 in words is "seventy-nine million, three hundred eighty-seven thousand, eighty-seven".