79363381 has 4 divisors (see below), whose sum is σ = 79533792. Its totient is φ = 79192972.

The previous prime is 79363373. The next prime is 79363393. The reversal of 79363381 is 18336397.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18336397 = 113 ⋅162269.

It is a cyclic number.

It is not a de Polignac number, because 79363381 - 2³ = 79363373 is a prime.

It is a super-2 number, since 2×79363381² = 12597092487502322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79360381) 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 3 ways as a sum of consecutive naturals, for example, 84505 + ... + 85438.

It is an arithmetic number, because the mean of its divisors is an integer number (19883448).

Almost surely, 2^79363381 is an apocalyptic number.

It is an amenable number.

79363381 is a deficient number, since it is larger than the sum of its proper divisors (170411).

79363381 is a wasteful number, since it uses less digits than its factorization.

79363381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170410.

The product of its digits is 81648, while the sum is 40.

The square root of 79363381 is about 8908.6127427339. The cubic root of 79363381 is about 429.7409310200.

The spelling of 79363381 in words is "seventy-nine million, three hundred sixty-three thousand, three hundred eighty-one".