712990985 has 8 divisors (see below), whose sum is σ = 977816256. Its totient is φ = 488908080.

The previous prime is 712990981. The next prime is 712990991. The reversal of 712990985 is 589099217.

It is a happy number.

712990985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 712990985 - 2² = 712990981 is a prime.

It is a super-2 number, since 2×712990985² = 1016712289382540450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712990981) 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, 10185551 + ... + 10185620.

It is an arithmetic number, because the mean of its divisors is an integer number (122227032).

Almost surely, 2^712990985 is an apocalyptic number.

It is an amenable number.

712990985 is a deficient number, since it is larger than the sum of its proper divisors (264825271).

712990985 is a wasteful number, since it uses less digits than its factorization.

712990985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20371183.

The product of its (nonzero) digits is 408240, while the sum is 50.

The square root of 712990985 is about 26701.8910379022. The cubic root of 712990985 is about 893.3631056604.

The spelling of 712990985 in words is "seven hundred twelve million, nine hundred ninety thousand, nine hundred eighty-five".