3863997 has 8 divisors (see below), whose sum is σ = 5724480. Its totient is φ = 2575980.

The previous prime is 3863987. The next prime is 3864019. The reversal of 3863997 is 7993683.

It is a happy number.

3863997 is a `hidden beast` number, since 3 + 8 + 639 + 9 + 7 = 666.

It is not a de Polignac number, because 3863997 - 2¹⁹ = 3339709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3863987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71529 + ... + 71582.

It is an arithmetic number, because the mean of its divisors is an integer number (715560).

Almost surely, 2^3863997 is an apocalyptic number.

It is an amenable number.

3863997 is a deficient number, since it is larger than the sum of its proper divisors (1860483).

3863997 is a wasteful number, since it uses less digits than its factorization.

3863997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143120 (or 143114 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 3863997 is about 1965.7052169641. The cubic root of 3863997 is about 156.9202266916.

The spelling of 3863997 in words is "three million, eight hundred sixty-three thousand, nine hundred ninety-seven".