709941221 has 8 divisors (see below), whose sum is σ = 782150688. Its totient is φ = 639010000.

The previous prime is 709941217. The next prime is 709941293. The reversal of 709941221 is 122149907.

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 709941221 - 2² = 709941217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709941521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318395 + ... + 320616.

It is an arithmetic number, because the mean of its divisors is an integer number (97768836).

Almost surely, 2^709941221 is an apocalyptic number.

It is an amenable number.

709941221 is a deficient number, since it is larger than the sum of its proper divisors (72209467).

709941221 is a wasteful number, since it uses less digits than its factorization.

709941221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639123.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 709941221 is about 26644.7221978387. The cubic root of 709941221 is about 892.0875212406.

The spelling of 709941221 in words is "seven hundred nine million, nine hundred forty-one thousand, two hundred twenty-one".