3988923 has 8 divisors (see below), whose sum is σ = 5334528. Its totient is φ = 2651304.

The previous prime is 3988909. The next prime is 3988961. The reversal of 3988923 is 3298893.

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

It is not a de Polignac number, because 3988923 - 2⁸ = 3988667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3988903) 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, 711 + ... + 2912.

It is an arithmetic number, because the mean of its divisors is an integer number (666816).

Almost surely, 2^3988923 is an apocalyptic number.

3988923 is a deficient number, since it is larger than the sum of its proper divisors (1345605).

3988923 is a wasteful number, since it uses less digits than its factorization.

3988923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993.

The product of its digits is 93312, while the sum is 42.

The square root of 3988923 is about 1997.2288301544. The cubic root of 3988923 is about 158.5934393832.

The spelling of 3988923 in words is "three million, nine hundred eighty-eight thousand, nine hundred twenty-three".