3998371 has 12 divisors (see below), whose sum is σ = 4413960. Its totient is φ = 3619200.

The previous prime is 3998369. The next prime is 3998377. The reversal of 3998371 is 1738993.

It is not a de Polignac number, because 3998371 - 2¹ = 3998369 is a prime.

It is a Duffinian number.

Its product of digits (40824) is a multiple of the sum of its prime factors (486).

It is not an unprimeable number, because it can be changed into a prime (3998377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9771 + ... + 10171.

It is an arithmetic number, because the mean of its divisors is an integer number (367830).

Almost surely, 2^3998371 is an apocalyptic number.

3998371 is a deficient number, since it is larger than the sum of its proper divisors (415589).

3998371 is a wasteful number, since it uses less digits than its factorization.

3998371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 473 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 3998371 is about 1999.5927085284. The cubic root of 3998371 is about 158.7185533016.

The spelling of 3998371 in words is "three million, nine hundred ninety-eight thousand, three hundred seventy-one".