626321461 has 2 divisors, whose sum is σ = 626321462. Its totient is φ = 626321460.

The previous prime is 626321431. The next prime is 626321471. The reversal of 626321461 is 164123626.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 565964100 + 60357361 = 23790^2 + 7769^2 .

It is a cyclic number.

It is not a de Polignac number, because 626321461 - 2¹⁹ = 625797173 is a prime.

It is equal to p_32625409 and since 626321461 and 32625409 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (626321431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313160730 + 313160731.

It is an arithmetic number, because the mean of its divisors is an integer number (313160731).

Almost surely, 2^626321461 is an apocalyptic number.

It is an amenable number.

626321461 is a deficient number, since it is larger than the sum of its proper divisors (1).

626321461 is an equidigital number, since it uses as much as digits as its factorization.

626321461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 626321461 is about 25026.4152646758. The cubic root of 626321461 is about 855.5901268921.

The spelling of 626321461 in words is "six hundred twenty-six million, three hundred twenty-one thousand, four hundred sixty-one".