712994821 has 16 divisors (see below), whose sum is σ = 897246720. Its totient is φ = 550381680.

The previous prime is 712994813. The next prime is 712994827. The reversal of 712994821 is 128499217.

It is a happy number.

712994821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 712994821 - 2³ = 712994813 is a prime.

It is a super-2 number, since 2×712994821² = 1016723229545644082, 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 (712994827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35031 + ... + 51508.

It is an arithmetic number, because the mean of its divisors is an integer number (56077920).

Almost surely, 2^712994821 is an apocalyptic number.

It is an amenable number.

712994821 is a deficient number, since it is larger than the sum of its proper divisors (184251899).

712994821 is a wasteful number, since it uses less digits than its factorization.

712994821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86664.

The product of its digits is 72576, while the sum is 43.

The square root of 712994821 is about 26701.9628679241. The cubic root of 712994821 is about 893.3647078007.

The spelling of 712994821 in words is "seven hundred twelve million, nine hundred ninety-four thousand, eight hundred twenty-one".