626042747 has 6 divisors (see below), whose sum is σ = 688129764. Its totient is φ = 569129660.

The previous prime is 626042717. The next prime is 626042759. The reversal of 626042747 is 747240626.

It is not a de Polignac number, because 626042747 - 2²² = 621848443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 626042747.

It is not an unprimeable number, because it can be changed into a prime (626042717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2586833 + ... + 2587074.

It is an arithmetic number, because the mean of its divisors is an integer number (114688294).

Almost surely, 2^626042747 is an apocalyptic number.

626042747 is a deficient number, since it is larger than the sum of its proper divisors (62087017).

626042747 is a wasteful number, since it uses less digits than its factorization.

626042747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173929 (or 5173918 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 626042747 is about 25020.8462486783. The cubic root of 626042747 is about 855.4631950939.

The spelling of 626042747 in words is "six hundred twenty-six million, forty-two thousand, seven hundred forty-seven".