3981510 has 96 divisors (see below), whose sum is σ = 11557728. Its totient is φ = 944640.

The previous prime is 3981503. The next prime is 3981517. The reversal of 3981510 is 151893.

It is an interprime number because it is at equal distance from previous prime (3981503) and next prime (3981517).

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981517) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47929 + ... + 48011.

It is an arithmetic number, because the mean of its divisors is an integer number (120393).

Almost surely, 2^3981510 is an apocalyptic number.

3981510 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3981510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5778864).

3981510 is an abundant number, since it is smaller than the sum of its proper divisors (7576218).

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

3981510 is a wasteful number, since it uses less digits than its factorization.

3981510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 3981510 is about 1995.3721457412. The cubic root of 3981510 is about 158.4951353050.

The spelling of 3981510 in words is "three million, nine hundred eighty-one thousand, five hundred ten".