712661501 has 2 divisors, whose sum is σ = 712661502. Its totient is φ = 712661500.

The previous prime is 712661497. The next prime is 712661503. The reversal of 712661501 is 105166217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 508457401 + 204204100 = 22549^2 + 14290^2 .

It is a cyclic number.

It is not a de Polignac number, because 712661501 - 2² = 712661497 is a prime.

Together with 712661503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712661503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356330750 + 356330751.

It is an arithmetic number, because the mean of its divisors is an integer number (356330751).

Almost surely, 2^712661501 is an apocalyptic number.

It is an amenable number.

712661501 is a deficient number, since it is larger than the sum of its proper divisors (1).

712661501 is an equidigital number, since it uses as much as digits as its factorization.

712661501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 712661501 is about 26695.7206495723. The cubic root of 712661501 is about 893.2254722222.

The spelling of 712661501 in words is "seven hundred twelve million, six hundred sixty-one thousand, five hundred one".