707913221 has 8 divisors (see below), whose sum is σ = 710514624. Its totient is φ = 705317760.

The previous prime is 707913181. The next prime is 707913293. The reversal of 707913221 is 122319707.

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 707913221 - 2¹⁰ = 707912197 is a prime.

It is a super-2 number, since 2×707913221² = 1002282256933189682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (707913721) 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 7 ways as a sum of consecutive naturals, for example, 423830 + ... + 425496.

It is an arithmetic number, because the mean of its divisors is an integer number (88814328).

Almost surely, 2^707913221 is an apocalyptic number.

It is an amenable number.

707913221 is a deficient number, since it is larger than the sum of its proper divisors (2601403).

707913221 is a wasteful number, since it uses less digits than its factorization.

707913221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 707913221 is about 26606.6386640628. The cubic root of 707913221 is about 891.2372729670.

The spelling of 707913221 in words is "seven hundred seven million, nine hundred thirteen thousand, two hundred twenty-one".