79378893 has 32 divisors (see below), whose sum is σ = 128937600. Its totient is φ = 47865600.

The previous prime is 79378891. The next prime is 79378921. The reversal of 79378893 is 39887397.

Added to its reverse (39887397) it gives a triangular number (119266290 = T₁₅₄₄₄).

It is not a de Polignac number, because 79378893 - 2¹ = 79378891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79378891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71023 + ... + 72131.

It is an arithmetic number, because the mean of its divisors is an integer number (4029300).

Almost surely, 2^79378893 is an apocalyptic number.

It is an amenable number.

79378893 is a deficient number, since it is larger than the sum of its proper divisors (49558707).

79378893 is a wasteful number, since it uses less digits than its factorization.

79378893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370 (or 1364 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 79378893 is about 8909.4833183524. The cubic root of 79378893 is about 429.7689275888.

Adding to 79378893 its reverse (39887397), we get a triangular number (119266290 = T₁₅₄₄₄).

It can be divided in two parts, 793788 and 93, that added together give a square (793881 = 891²).

The spelling of 79378893 in words is "seventy-nine million, three hundred seventy-eight thousand, eight hundred ninety-three".