69379221 has 16 divisors (see below), whose sum is σ = 94374720. Its totient is φ = 45323520.

The previous prime is 69379217. The next prime is 69379229. The reversal of 69379221 is 12297396.

It is not a de Polignac number, because 69379221 - 2² = 69379217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69379221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69379229) 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, 104631 + ... + 105291.

It is an arithmetic number, because the mean of its divisors is an integer number (5898420).

Almost surely, 2^69379221 is an apocalyptic number.

It is an amenable number.

69379221 is a deficient number, since it is larger than the sum of its proper divisors (24995499).

69379221 is a wasteful number, since it uses less digits than its factorization.

69379221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316.

The product of its digits is 40824, while the sum is 39.

The square root of 69379221 is about 8329.4190073498. The cubic root of 69379221 is about 410.9066215363.

The spelling of 69379221 in words is "sixty-nine million, three hundred seventy-nine thousand, two hundred twenty-one".