3992997 has 8 divisors (see below), whose sum is σ = 5373280. Its totient is φ = 2637360.

The previous prime is 3992987. The next prime is 3993019. The reversal of 3992997 is 7992993.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3992997 - 2⁸ = 3992741 is a prime.

It is a super-3 number, since 3×3992997³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3992917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5779 + ... + 6432.

It is an arithmetic number, because the mean of its divisors is an integer number (671660).

Almost surely, 2^3992997 is an apocalyptic number.

It is an amenable number.

3992997 is a deficient number, since it is larger than the sum of its proper divisors (1380283).

3992997 is a wasteful number, since it uses less digits than its factorization.

3992997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12323.

The product of its digits is 275562, while the sum is 48.

The square root of 3992997 is about 1998.2484830471. The cubic root of 3992997 is about 158.6474130024.

The spelling of 3992997 in words is "three million, nine hundred ninety-two thousand, nine hundred ninety-seven".