3915213 has 16 divisors (see below), whose sum is σ = 5409600. Its totient is φ = 2517120.

The previous prime is 3915187. The next prime is 3915239. The reversal of 3915213 is 3125193.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3915187) and next prime (3915239).

It is not a de Polignac number, because 3915213 - 2⁸ = 3914957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3915293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16983 + ... + 17211.

It is an arithmetic number, because the mean of its divisors is an integer number (338100).

Almost surely, 2^3915213 is an apocalyptic number.

It is an amenable number.

3915213 is a deficient number, since it is larger than the sum of its proper divisors (1494387).

3915213 is a wasteful number, since it uses less digits than its factorization.

3915213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412.

The product of its digits is 810, while the sum is 24.

The square root of 3915213 is about 1978.6897179699. The cubic root of 3915213 is about 157.6104943968.

The spelling of 3915213 in words is "three million, nine hundred fifteen thousand, two hundred thirteen".