3923145 has 12 divisors (see below), whose sum is σ = 6800196. Its totient is φ = 2092320.

The previous prime is 3923099. The next prime is 3923159. The reversal of 3923145 is 5413293.

It can be written as a sum of positive squares in 2 ways, for example, as 2547216 + 1375929 = 1596^2 + 1173^2 .

It is not a de Polignac number, because 3923145 - 2¹² = 3919049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43546 + ... + 43635.

It is an arithmetic number, because the mean of its divisors is an integer number (566683).

Almost surely, 2^3923145 is an apocalyptic number.

It is an amenable number.

3923145 is a deficient number, since it is larger than the sum of its proper divisors (2877051).

3923145 is a wasteful number, since it uses less digits than its factorization.

3923145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87192 (or 87189 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 3923145 is about 1980.6930605220. The cubic root of 3923145 is about 157.7168592472.

The spelling of 3923145 in words is "three million, nine hundred twenty-three thousand, one hundred forty-five".