3956237 has 4 divisors (see below), whose sum is σ = 4164480. Its totient is φ = 3747996.

The previous prime is 3956233. The next prime is 3956261. The reversal of 3956237 is 7326593.

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 3956237 - 2² = 3956233 is a prime.

It is a super-2 number, since 2×3956237² = 31303622400338, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁷ + 9² + 5 + 6⁸ + 2²¹ + 3¹¹ + 7² .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3956197 and 3956206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3956233) 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, 104093 + ... + 104130.

It is an arithmetic number, because the mean of its divisors is an integer number (1041120).

Almost surely, 2^3956237 is an apocalyptic number.

It is an amenable number.

3956237 is a deficient number, since it is larger than the sum of its proper divisors (208243).

3956237 is a wasteful number, since it uses less digits than its factorization.

3956237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208242.

The product of its digits is 34020, while the sum is 35.

The square root of 3956237 is about 1989.0291601683. The cubic root of 3956237 is about 158.1590690910.

The spelling of 3956237 in words is "three million, nine hundred fifty-six thousand, two hundred thirty-seven".