3956923 has 4 divisors (see below), whose sum is σ = 3970120. Its totient is φ = 3943728.

The previous prime is 3956917. The next prime is 3956941. The reversal of 3956923 is 3296593.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3956923 - 2¹³ = 3948731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3956983) 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, 6138 + ... + 6751.

It is an arithmetic number, because the mean of its divisors is an integer number (992530).

Almost surely, 2^3956923 is an apocalyptic number.

3956923 is a deficient number, since it is larger than the sum of its proper divisors (13197).

3956923 is a wasteful number, since it uses less digits than its factorization.

3956923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13196.

The product of its digits is 43740, while the sum is 37.

The square root of 3956923 is about 1989.2015986320. The cubic root of 3956923 is about 158.1682100037.

The spelling of 3956923 in words is "three million, nine hundred fifty-six thousand, nine hundred twenty-three".