625386706 has 12 divisors (see below), whose sum is σ = 1091236158. Its totient is φ = 268022832.

The previous prime is 625386689. The next prime is 625386709. The reversal of 625386706 is 607683526.

It can be written as a sum of positive squares in only one way, i.e., 509630625 + 115756081 = 22575^2 + 10759^2 .

It is a super-2 number, since 2×625386706² = 782217064083060872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (625386709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3190651 + ... + 3190846.

Almost surely, 2^625386706 is an apocalyptic number.

625386706 is a deficient number, since it is larger than the sum of its proper divisors (465849452).

625386706 is a wasteful number, since it uses less digits than its factorization.

625386706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6381513 (or 6381506 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 625386706 is about 25007.7329240377. The cubic root of 625386706 is about 855.1642724384.

The spelling of 625386706 in words is "six hundred twenty-five million, three hundred eighty-six thousand, seven hundred six".