685864274 has 8 divisors (see below), whose sum is σ = 1061983488. Its totient is φ = 331869780.

The previous prime is 685864271. The next prime is 685864307. The reversal of 685864274 is 472468586.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (685864271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5531102 + ... + 5531225.

It is an arithmetic number, because the mean of its divisors is an integer number (132747936).

Almost surely, 2^685864274 is an apocalyptic number.

685864274 is a deficient number, since it is larger than the sum of its proper divisors (376119214).

685864274 is a wasteful number, since it uses less digits than its factorization.

685864274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11062360.

The product of its digits is 2580480, while the sum is 50.

The square root of 685864274 is about 26189.0105578657. The cubic root of 685864274 is about 881.8865664490.

The spelling of 685864274 in words is "six hundred eighty-five million, eight hundred sixty-four thousand, two hundred seventy-four".