626890433 has 8 divisors (see below), whose sum is σ = 677120808. Its totient is φ = 576946944.

The previous prime is 626890403. The next prime is 626890447. The reversal of 626890433 is 334098626.

626890433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23107249 + 603783184 = 4807^2 + 24572^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 626890433 - 2⁸ = 626890177 is a prime.

It is a super-2 number, since 2×626890433² = 785983229973854978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (626890403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67166 + ... + 75927.

It is an arithmetic number, because the mean of its divisors is an integer number (84640101).

Almost surely, 2^626890433 is an apocalyptic number.

It is an amenable number.

626890433 is a deficient number, since it is larger than the sum of its proper divisors (50230375).

626890433 is a wasteful number, since it uses less digits than its factorization.

626890433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143443.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 626890433 is about 25037.7801132608. The cubic root of 626890433 is about 855.8491309976.

The spelling of 626890433 in words is "six hundred twenty-six million, eight hundred ninety thousand, four hundred thirty-three".