3968637 has 8 divisors (see below), whose sum is σ = 5300736. Its totient is φ = 2641152.

The previous prime is 3968617. The next prime is 3968647. The reversal of 3968637 is 7368693.

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

It is not a de Polignac number, because 3968637 - 2⁸ = 3968381 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3968617) 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, 2653 + ... + 3869.

It is an arithmetic number, because the mean of its divisors is an integer number (662592).

Almost surely, 2^3968637 is an apocalyptic number.

It is an amenable number.

3968637 is a deficient number, since it is larger than the sum of its proper divisors (1332099).

3968637 is a wasteful number, since it uses less digits than its factorization.

3968637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307.

The product of its digits is 163296, while the sum is 42.

The square root of 3968637 is about 1992.1438201094. The cubic root of 3968637 is about 158.3241356307.

The spelling of 3968637 in words is "three million, nine hundred sixty-eight thousand, six hundred thirty-seven".