79621229 has 8 divisors (see below), whose sum is σ = 84643680. Its totient is φ = 74682000.

The previous prime is 79621219. The next prime is 79621231. The reversal of 79621229 is 92212697.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79621229 - 2¹² = 79617133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79621192 and 79621201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79621219) 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 7 ways as a sum of consecutive naturals, for example, 18827 + ... + 22664.

It is an arithmetic number, because the mean of its divisors is an integer number (10580460).

Almost surely, 2^79621229 is an apocalyptic number.

It is an amenable number.

79621229 is a deficient number, since it is larger than the sum of its proper divisors (5022451).

79621229 is a wasteful number, since it uses less digits than its factorization.

79621229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41611.

The product of its digits is 27216, while the sum is 38.

The square root of 79621229 is about 8923.0728451582. The cubic root of 79621229 is about 430.2058307891.

The spelling of 79621229 in words is "seventy-nine million, six hundred twenty-one thousand, two hundred twenty-nine".