685370398 has 8 divisors (see below), whose sum is σ = 1063505880. Its totient is φ = 330868440.

The previous prime is 685370383. The next prime is 685370407. The reversal of 685370398 is 893073586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5908308 + ... + 5908423.

It is an arithmetic number, because the mean of its divisors is an integer number (132938235).

Almost surely, 2^685370398 is an apocalyptic number.

685370398 is a deficient number, since it is larger than the sum of its proper divisors (378135482).

685370398 is a wasteful number, since it uses less digits than its factorization.

685370398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11816762.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 685370398 is about 26179.5797903633. The cubic root of 685370398 is about 881.6748398194.

The spelling of 685370398 in words is "six hundred eighty-five million, three hundred seventy thousand, three hundred ninety-eight".