685953294 has 32 divisors (see below), whose sum is σ = 1498258944. Its totient is φ = 208088160.

The previous prime is 685953283. The next prime is 685953299. The reversal of 685953294 is 492359586.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685953299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56394 + ... + 67469.

It is an arithmetic number, because the mean of its divisors is an integer number (46820592).

Almost surely, 2^685953294 is an apocalyptic number.

685953294 is an abundant number, since it is smaller than the sum of its proper divisors (812305650).

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

685953294 is a wasteful number, since it uses less digits than its factorization.

685953294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123952.

The product of its digits is 2332800, while the sum is 51.

The square root of 685953294 is about 26190.7100705575. The cubic root of 685953294 is about 881.9247188692.

The spelling of 685953294 in words is "six hundred eighty-five million, nine hundred fifty-three thousand, two hundred ninety-four".