685226735 has 48 divisors (see below), whose sum is σ = 931261536. Its totient is φ = 482236416.

The previous prime is 685226693. The next prime is 685226743. The reversal of 685226735 is 537622586.

It is not a de Polignac number, because 685226735 - 2¹⁶ = 685161199 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

Its product of digits (604800) is a multiple of the sum of its prime factors (360).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4203764 + ... + 4203926.

It is an arithmetic number, because the mean of its divisors is an integer number (19401282).

Almost surely, 2^685226735 is an apocalyptic number.

685226735 is a deficient number, since it is larger than the sum of its proper divisors (246034801).

685226735 is a wasteful number, since it uses less digits than its factorization.

685226735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 341 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 685226735 is about 26176.8358477491. The cubic root of 685226735 is about 881.6132318169.

It can be divided in two parts, 68522 and 6735, that added together give a palindrome (75257).

The spelling of 685226735 in words is "six hundred eighty-five million, two hundred twenty-six thousand, seven hundred thirty-five".