685758152 has 16 divisors (see below), whose sum is σ = 1315699440. Its totient is φ = 334904976.

The previous prime is 685758113. The next prime is 685758163. The reversal of 685758152 is 251857586.

It is a happy number.

It is a super-3 number, since 3×685758152³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 685758097 and 685758106.

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 3 ways as a sum of consecutive naturals, for example, 996398 + ... + 997085.

It is an arithmetic number, because the mean of its divisors is an integer number (82231215).

Almost surely, 2^685758152 is an apocalyptic number.

It is an amenable number.

685758152 is a deficient number, since it is larger than the sum of its proper divisors (629941288).

685758152 is a wasteful number, since it uses less digits than its factorization.

685758152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993532 (or 1993528 counting only the distinct ones).

The product of its digits is 672000, while the sum is 47.

The square root of 685758152 is about 26186.9844006522. The cubic root of 685758152 is about 881.8410800960.

The spelling of 685758152 in words is "six hundred eighty-five million, seven hundred fifty-eight thousand, one hundred fifty-two".