3964137 has 4 divisors (see below), whose sum is σ = 5285520. Its totient is φ = 2642756.

The previous prime is 3964133. The next prime is 3964157. The reversal of 3964137 is 7314693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3964137 - 2² = 3964133 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 3964098 and 3964107.

It is not an unprimeable number, because it can be changed into a prime (3964133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660687 + ... + 660692.

It is an arithmetic number, because the mean of its divisors is an integer number (1321380).

Almost surely, 2^3964137 is an apocalyptic number.

It is an amenable number.

3964137 is a deficient number, since it is larger than the sum of its proper divisors (1321383).

3964137 is a wasteful number, since it uses less digits than its factorization.

3964137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321382.

The product of its digits is 13608, while the sum is 33.

The square root of 3964137 is about 1991.0140632351. The cubic root of 3964137 is about 158.2642722516.

The spelling of 3964137 in words is "three million, nine hundred sixty-four thousand, one hundred thirty-seven".