79233821 has 16 divisors (see below), whose sum is σ = 86733504. Its totient is φ = 72086784.

The previous prime is 79233797. The next prime is 79233823. The reversal of 79233821 is 12833297.

It is a cyclic number.

It is not a de Polignac number, because 79233821 - 2⁶ = 79233757 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 (79233823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77711 + ... + 78723.

It is an arithmetic number, because the mean of its divisors is an integer number (5420844).

Almost surely, 2^79233821 is an apocalyptic number.

It is an amenable number.

79233821 is a deficient number, since it is larger than the sum of its proper divisors (7499683).

79233821 is a wasteful number, since it uses less digits than its factorization.

79233821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180.

The product of its digits is 18144, while the sum is 35.

The square root of 79233821 is about 8901.3381578277. The cubic root of 79233821 is about 429.5069542608.

The spelling of 79233821 in words is "seventy-nine million, two hundred thirty-three thousand, eight hundred twenty-one".