685134435 has 16 divisors (see below), whose sum is σ = 1096545024. Its totient is φ = 365295072.

The previous prime is 685134421. The next prime is 685134449. The reversal of 685134435 is 534431586.

It is an interprime number because it is at equal distance from previous prime (685134421) and next prime (685134449).

It is not a de Polignac number, because 685134435 - 2⁹ = 685133923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 685134393 and 685134402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80284 + ... + 88406.

It is an arithmetic number, because the mean of its divisors is an integer number (68534064).

Almost surely, 2^685134435 is an apocalyptic number.

685134435 is a deficient number, since it is larger than the sum of its proper divisors (411410589).

685134435 is a wasteful number, since it uses less digits than its factorization.

685134435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13754.

The product of its digits is 172800, while the sum is 39.

The square root of 685134435 is about 26175.0727792684. The cubic root of 685134435 is about 881.5736456230.

The spelling of 685134435 in words is "six hundred eighty-five million, one hundred thirty-four thousand, four hundred thirty-five".