3902923 has 4 divisors (see below), whose sum is σ = 4108360. Its totient is φ = 3697488.

The previous prime is 3902887. The next prime is 3902929. The reversal of 3902923 is 3292093.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3292093 = 7 ⋅470299.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3902923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3902891 and 3902900.

It is not an unprimeable number, because it can be changed into a prime (3902929) 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, 102690 + ... + 102727.

It is an arithmetic number, because the mean of its divisors is an integer number (1027090).

Almost surely, 2^3902923 is an apocalyptic number.

3902923 is a deficient number, since it is larger than the sum of its proper divisors (205437).

3902923 is a wasteful number, since it uses less digits than its factorization.

3902923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205436.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 3902923 is about 1975.5816864913. The cubic root of 3902923 is about 157.4454064587.

The spelling of 3902923 in words is "three million, nine hundred two thousand, nine hundred twenty-three".