3981002 has 8 divisors (see below), whose sum is σ = 5986596. Its totient is φ = 1985472.

The previous prime is 3980987. The next prime is 3981017. The reversal of 3981002 is 2001893.

It is an interprime number because it is at equal distance from previous prime (3980987) and next prime (3981017).

It can be written as a sum of positive squares in 2 ways, for example, as 3136441 + 844561 = 1771^2 + 919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433 + ... + 3164.

Almost surely, 2^3981002 is an apocalyptic number.

3981002 is a deficient number, since it is larger than the sum of its proper divisors (2005594).

3981002 is a wasteful number, since it uses less digits than its factorization.

3981002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5032.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 3981002 is about 1995.2448471303. The cubic root of 3981002 is about 158.4883942316.

Adding to 3981002 its reverse (2001893), we get a palindrome (5982895).

The spelling of 3981002 in words is "three million, nine hundred eighty-one thousand, two".