3912993 has 36 divisors (see below), whose sum is σ = 6935760. Its totient is φ = 2113776.

The previous prime is 3912983. The next prime is 3913027. The reversal of 3912993 is 3992193.

It is not a de Polignac number, because 3912993 - 2⁹ = 3912481 is a prime.

3912993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3912943) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8146 + ... + 8612.

It is an arithmetic number, because the mean of its divisors is an integer number (192660).

Almost surely, 2^3912993 is an apocalyptic number.

It is an amenable number.

3912993 is a deficient number, since it is larger than the sum of its proper divisors (3022767).

3912993 is a wasteful number, since it uses less digits than its factorization.

3912993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 496 counting only the distinct ones).

The product of its digits is 13122, while the sum is 36.

The square root of 3912993 is about 1978.1286611341. The cubic root of 3912993 is about 157.5806993852.

The spelling of 3912993 in words is "three million, nine hundred twelve thousand, nine hundred ninety-three".