685370498 has 8 divisors (see below), whose sum is σ = 1034955900. Its totient is φ = 340385200.

The previous prime is 685370479. The next prime is 685370509. The reversal of 685370498 is 894073586.

It can be written as a sum of positive squares in 2 ways, for example, as 685025929 + 344569 = 26173^2 + 587^2 .

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

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, 1149653 + ... + 1150248.

Almost surely, 2^685370498 is an apocalyptic number.

685370498 is a deficient number, since it is larger than the sum of its proper divisors (349585402).

685370498 is a wasteful number, since it uses less digits than its factorization.

685370498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300052.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 685370498 is about 26179.5817002488. The cubic root of 685370498 is about 881.6748827001.

The spelling of 685370498 in words is "six hundred eighty-five million, three hundred seventy thousand, four hundred ninety-eight".