712506221 has 8 divisors (see below), whose sum is σ = 816287040. Its totient is φ = 609223968.

The previous prime is 712506203. The next prime is 712506233. The reversal of 712506221 is 122605217.

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 712506221 - 2¹⁰ = 712505197 is a prime.

It is a super-2 number, since 2×712506221² = 1015330229927401682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712506271) 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, 121571 + ... + 127296.

It is an arithmetic number, because the mean of its divisors is an integer number (102035880).

Almost surely, 2^712506221 is an apocalyptic number.

It is an amenable number.

712506221 is a deficient number, since it is larger than the sum of its proper divisors (103780819).

712506221 is a wasteful number, since it uses less digits than its factorization.

712506221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249283.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 712506221 is about 26692.8121598306. The cubic root of 712506221 is about 893.1605933018.

The spelling of 712506221 in words is "seven hundred twelve million, five hundred six thousand, two hundred twenty-one".