7981002 has 12 divisors (see below), whose sum is σ = 17292210. Its totient is φ = 2660328.

The previous prime is 7980997. The next prime is 7981013. The reversal of 7981002 is 2001897.

It can be written as a sum of positive squares in only one way, i.e., 6922161 + 1058841 = 2631^2 + 1029^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221677 + ... + 221712.

Almost surely, 2^7981002 is an apocalyptic number.

7981002 is an abundant number, since it is smaller than the sum of its proper divisors (9311208).

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

7981002 is a wasteful number, since it uses less digits than its factorization.

7981002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443397 (or 443394 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 7981002 is about 2825.0667248757. The cubic root of 7981002 is about 199.8415578469.

Adding to 7981002 its product of nonzero digits (1008), we get a triangular number (7982010 = T₃₉₉₅).

Adding to 7981002 its reverse (2001897), we get a palindrome (9982899).

The spelling of 7981002 in words is "seven million, nine hundred eighty-one thousand, two".