625643346 has 16 divisors (see below), whose sum is σ = 1254592800. Its totient is φ = 207996768.

The previous prime is 625643339. The next prime is 625643357. The reversal of 625643346 is 643346526.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135291 + ... + 139838.

It is an arithmetic number, because the mean of its divisors is an integer number (78412050).

Almost surely, 2^625643346 is an apocalyptic number.

625643346 is an abundant number, since it is smaller than the sum of its proper divisors (628949454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625643346 is a wasteful number, since it uses less digits than its factorization.

625643346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275513.

The product of its digits is 311040, while the sum is 39.

The square root of 625643346 is about 25012.8636105505. The cubic root of 625643346 is about 855.2812343877.

The spelling of 625643346 in words is "six hundred twenty-five million, six hundred forty-three thousand, three hundred forty-six".