626846749 has 2 divisors, whose sum is σ = 626846750. Its totient is φ = 626846748.

The previous prime is 626846713. The next prime is 626846833. The reversal of 626846749 is 947648626.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 617174649 + 9672100 = 24843^2 + 3110^2 .

It is a cyclic number.

It is not a de Polignac number, because 626846749 - 2⁹ = 626846237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 626846696 and 626846705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (626846249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313423374 + 313423375.

It is an arithmetic number, because the mean of its divisors is an integer number (313423375).

Almost surely, 2^626846749 is an apocalyptic number.

It is an amenable number.

626846749 is a deficient number, since it is larger than the sum of its proper divisors (1).

626846749 is an equidigital number, since it uses as much as digits as its factorization.

626846749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 52.

The square root of 626846749 is about 25036.9077363799. The cubic root of 626846749 is about 855.8292509782.

The spelling of 626846749 in words is "six hundred twenty-six million, eight hundred forty-six thousand, seven hundred forty-nine".