712421837 has 2 divisors, whose sum is σ = 712421838. Its totient is φ = 712421836.

The previous prime is 712421779. The next prime is 712421887. The reversal of 712421837 is 738124217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 708304996 + 4116841 = 26614^2 + 2029^2 .

It is a cyclic number.

It is not a de Polignac number, because 712421837 - 2²⁸ = 443986381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 712421797 and 712421806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712421887) 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 as a sum of consecutive naturals, namely, 356210918 + 356210919.

It is an arithmetic number, because the mean of its divisors is an integer number (356210919).

Almost surely, 2^712421837 is an apocalyptic number.

It is an amenable number.

712421837 is a deficient number, since it is larger than the sum of its proper divisors (1).

712421837 is an equidigital number, since it uses as much as digits as its factorization.

712421837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 35.

The square root of 712421837 is about 26691.2314627857. The cubic root of 712421837 is about 893.1253321178.

The spelling of 712421837 in words is "seven hundred twelve million, four hundred twenty-one thousand, eight hundred thirty-seven".