712007731 has 2 divisors, whose sum is σ = 712007732. Its totient is φ = 712007730.

The previous prime is 712007713. The next prime is 712007759. The reversal of 712007731 is 137700217.

Together with previous prime (712007713) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (712007759) can be obtained adding 712007731 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (137700217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 712007731 - 2⁷ = 712007603 is a prime.

It is a super-2 number, since 2×712007731² = 1013910018007536722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 712007731.

It is not a weakly prime, because it can be changed into another prime (712007771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356003865 + 356003866.

It is an arithmetic number, because the mean of its divisors is an integer number (356003866).

Almost surely, 2^712007731 is an apocalyptic number.

712007731 is a deficient number, since it is larger than the sum of its proper divisors (1).

712007731 is an equidigital number, since it uses as much as digits as its factorization.

712007731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 712007731 is about 26683.4729935966. The cubic root of 712007731 is about 892.9522510288.

Adding to 712007731 its reverse (137700217), we get a palindrome (849707948).

The spelling of 712007731 in words is "seven hundred twelve million, seven thousand, seven hundred thirty-one".