696442221 has 24 divisors (see below), whose sum is σ = 1043527680. Its totient is φ = 447050016.

The previous prime is 696442217. The next prime is 696442223. The reversal of 696442221 is 122244696.

696442221 is a `hidden beast` number, since 6 + 9 + 644 + 2 + 2 + 2 + 1 = 666.

It is not a de Polignac number, because 696442221 - 2² = 696442217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696442223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96480 + ... + 103446.

It is an arithmetic number, because the mean of its divisors is an integer number (43480320).

Almost surely, 2^696442221 is an apocalyptic number.

It is an amenable number.

696442221 is a deficient number, since it is larger than the sum of its proper divisors (347085459).

696442221 is a wasteful number, since it uses less digits than its factorization.

696442221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7385 (or 7382 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 696442221 is about 26390.1917575451. The cubic root of 696442221 is about 886.3971763934.

The spelling of 696442221 in words is "six hundred ninety-six million, four hundred forty-two thousand, two hundred twenty-one".