675257646 has 32 divisors (see below), whose sum is σ = 1634238720. Its totient is φ = 181581696.

The previous prime is 675257591. The next prime is 675257651. The reversal of 675257646 is 646752576.

It is a super-2 number, since 2×675257646² = 911945776962922632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 675257595 and 675257604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472156 + ... + 473583.

It is an arithmetic number, because the mean of its divisors is an integer number (51069960).

Almost surely, 2^675257646 is an apocalyptic number.

675257646 is an abundant number, since it is smaller than the sum of its proper divisors (958981074).

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

675257646 is a wasteful number, since it uses less digits than its factorization.

675257646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945768.

The product of its digits is 2116800, while the sum is 48.

The square root of 675257646 is about 25985.7200400528. The cubic root of 675257646 is about 877.3169163738.

The spelling of 675257646 in words is "six hundred seventy-five million, two hundred fifty-seven thousand, six hundred forty-six".