3948237 has 16 divisors (see below), whose sum is σ = 5880000. Its totient is φ = 2618352.

The previous prime is 3948229. The next prime is 3948247. The reversal of 3948237 is 7328493.

It is not a de Polignac number, because 3948237 - 2³ = 3948229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9214 + ... + 9632.

It is an arithmetic number, because the mean of its divisors is an integer number (367500).

Almost surely, 2^3948237 is an apocalyptic number.

3948237 is the 1257-th heptagonal number.

It is an amenable number.

3948237 is a deficient number, since it is larger than the sum of its proper divisors (1931763).

3948237 is a wasteful number, since it uses less digits than its factorization.

3948237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777 (or 771 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 3948237 is about 1987.0171111493. The cubic root of 3948237 is about 158.0523914275.

The spelling of 3948237 in words is "three million, nine hundred forty-eight thousand, two hundred thirty-seven".