79819445 has 8 divisors (see below), whose sum is σ = 97213344. Its totient is φ = 62902224.

The previous prime is 79819429. The next prime is 79819463. The reversal of 79819445 is 54491897.

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 79819445 - 2⁴ = 79819429 is a prime.

It is a super-2 number, since 2×79819445² = 12742287600216050, which contains 22 as substring.

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 79819445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118799 + ... + 119468.

It is an arithmetic number, because the mean of its divisors is an integer number (12151668).

Almost surely, 2^79819445 is an apocalyptic number.

It is an amenable number.

79819445 is a deficient number, since it is larger than the sum of its proper divisors (17393899).

79819445 is a wasteful number, since it uses less digits than its factorization.

79819445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238339.

The product of its digits is 362880, while the sum is 47.

The square root of 79819445 is about 8934.1728772170. The cubic root of 79819445 is about 430.5625321997.

The spelling of 79819445 in words is "seventy-nine million, eight hundred nineteen thousand, four hundred forty-five".