79223871 has 4 divisors (see below), whose sum is σ = 105631832. Its totient is φ = 52815912.

The previous prime is 79223839. The next prime is 79223873. The reversal of 79223871 is 17832297.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 79223871 - 2⁵ = 79223839 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 (79223873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13203976 + ... + 13203981.

It is an arithmetic number, because the mean of its divisors is an integer number (26407958).

Almost surely, 2^79223871 is an apocalyptic number.

79223871 is a deficient number, since it is larger than the sum of its proper divisors (26407961).

79223871 is a wasteful number, since it uses less digits than its factorization.

79223871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26407960.

The product of its digits is 42336, while the sum is 39.

The square root of 79223871 is about 8900.7792355501. The cubic root of 79223871 is about 429.4889746782.

The spelling of 79223871 in words is "seventy-nine million, two hundred twenty-three thousand, eight hundred seventy-one".