79019855 has 8 divisors (see below), whose sum is σ = 95548464. Its totient is φ = 62732800.

The previous prime is 79019851. The next prime is 79019869. The reversal of 79019855 is 55891097.

It is a happy number.

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

It is not a de Polignac number, because 79019855 - 2² = 79019851 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 (79019851) 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, 59666 + ... + 60975.

It is an arithmetic number, because the mean of its divisors is an integer number (11943558).

Almost surely, 2^79019855 is an apocalyptic number.

79019855 is a deficient number, since it is larger than the sum of its proper divisors (16528609).

79019855 is a wasteful number, since it uses less digits than its factorization.

79019855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120777.

The product of its (nonzero) digits is 113400, while the sum is 44.

The square root of 79019855 is about 8889.3112781587. The cubic root of 79019855 is about 429.1199867956.

The spelling of 79019855 in words is "seventy-nine million, nineteen thousand, eight hundred fifty-five".