79223890 has 32 divisors (see below), whose sum is σ = 146966400. Its totient is φ = 30729600.

The previous prime is 79223873. The next prime is 79223897. The reversal of 79223890 is 9832297.

It is not an unprimeable number, because it can be changed into a prime (79223897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81105 + ... + 82075.

It is an arithmetic number, because the mean of its divisors is an integer number (4592700).

Almost surely, 2^79223890 is an apocalyptic number.

79223890 is a deficient number, since it is larger than the sum of its proper divisors (67742510).

79223890 is a wasteful number, since it uses less digits than its factorization.

79223890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 79223890 is about 8900.7803028723. The cubic root of 79223890 is about 429.4890090125.

The spelling of 79223890 in words is "seventy-nine million, two hundred twenty-three thousand, eight hundred ninety".