683261538 has 16 divisors (see below), whose sum is σ = 1366830720. Its totient is φ = 227702576.

The previous prime is 683261497. The next prime is 683261539. The reversal of 683261538 is 835162386.

It is a self number, because there is not a number n which added to its sum of digits gives 683261538.

It is not an unprimeable number, because it can be changed into a prime (683261539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24343 + ... + 44261.

It is an arithmetic number, because the mean of its divisors is an integer number (85426920).

Almost surely, 2^683261538 is an apocalyptic number.

683261538 is an abundant number, since it is smaller than the sum of its proper divisors (683569182).

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

683261538 is a wasteful number, since it uses less digits than its factorization.

683261538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25641.

The product of its digits is 207360, while the sum is 42.

The square root of 683261538 is about 26139.2719485452. The cubic root of 683261538 is about 880.7696168412.

The spelling of 683261538 in words is "six hundred eighty-three million, two hundred sixty-one thousand, five hundred thirty-eight".