68731002 has 12 divisors (see below), whose sum is σ = 148917210. Its totient is φ = 22910328.

The previous prime is 68731001. The next prime is 68731009. The reversal of 68731002 is 20013786.

It can be written as a sum of positive squares in only one way, i.e., 53450721 + 15280281 = 7311^2 + 3909^2 .

It is not an unprimeable number, because it can be changed into a prime (68731001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1909177 + ... + 1909212.

Almost surely, 2^68731002 is an apocalyptic number.

68731002 is an abundant number, since it is smaller than the sum of its proper divisors (80186208).

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

68731002 is a wasteful number, since it uses less digits than its factorization.

68731002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818397 (or 3818394 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 68731002 is about 8290.4162742289. The cubic root of 68731002 is about 409.6228973622.

Adding to 68731002 its reverse (20013786), we get a palindrome (88744788).

It can be divided in two parts, 6873 and 1002, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 68731002 in words is "sixty-eight million, seven hundred thirty-one thousand, two".