712349021 has 8 divisors (see below), whose sum is σ = 717704064. Its totient is φ = 707007280.

The previous prime is 712349009. The next prime is 712349041. The reversal of 712349021 is 120943217.

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 712349021 - 2²⁶ = 645240157 is a prime.

It is a super-2 number, since 2×712349021² = 1014882255439316882, 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 (712349041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121211 + ... + 126951.

It is an arithmetic number, because the mean of its divisors is an integer number (89713008).

Almost surely, 2^712349021 is an apocalyptic number.

It is an amenable number.

712349021 is a deficient number, since it is larger than the sum of its proper divisors (5355043).

712349021 is a wasteful number, since it uses less digits than its factorization.

712349021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6651.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 712349021 is about 26689.8673844588. The cubic root of 712349021 is about 893.0949025667.

The spelling of 712349021 in words is "seven hundred twelve million, three hundred forty-nine thousand, twenty-one".