79145398 has 4 divisors (see below), whose sum is σ = 118718100. Its totient is φ = 39572698.

The previous prime is 79145351. The next prime is 79145399. The reversal of 79145398 is 89354197.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89354197 = 229 ⋅390193.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79145399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19786348 + ... + 19786351.

It is an arithmetic number, because the mean of its divisors is an integer number (29679525).

Almost surely, 2^79145398 is an apocalyptic number.

79145398 is a deficient number, since it is larger than the sum of its proper divisors (39572702).

79145398 is a wasteful number, since it uses less digits than its factorization.

79145398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39572701.

The product of its digits is 272160, while the sum is 46.

The square root of 79145398 is about 8896.3699338550. The cubic root of 79145398 is about 429.3471217157.

The spelling of 79145398 in words is "seventy-nine million, one hundred forty-five thousand, three hundred ninety-eight".