685089102 has 16 divisors (see below), whose sum is σ = 1370932992. Its totient is φ = 228237240.

The previous prime is 685089091. The next prime is 685089113. The reversal of 685089102 is 201980586.

It is an interprime number because it is at equal distance from previous prime (685089091) and next prime (685089113).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19288 + ... + 41739.

It is an arithmetic number, because the mean of its divisors is an integer number (85683312).

Almost surely, 2^685089102 is an apocalyptic number.

685089102 is an abundant number, since it is smaller than the sum of its proper divisors (685843890).

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

685089102 is a wasteful number, since it uses less digits than its factorization.

685089102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62903.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 685089102 is about 26174.2068074660. The cubic root of 685089102 is about 881.5542016241.

The spelling of 685089102 in words is "six hundred eighty-five million, eighty-nine thousand, one hundred two".