3899392 has 64 divisors (see below), whose sum is σ = 9437040. Its totient is φ = 1572864.

The previous prime is 3899383. The next prime is 3899407. The reversal of 3899392 is 2939983.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

Its product of digits (104976) is a multiple of the sum of its prime factors (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229368 + ... + 229384.

Almost surely, 2^3899392 is an apocalyptic number.

3899392 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3899392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4718520).

3899392 is an abundant number, since it is smaller than the sum of its proper divisors (5537648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3899392 is an frugal number, since it uses more digits than its factorization.

3899392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54 (or 26 counting only the distinct ones).

The product of its digits is 104976, while the sum is 43.

The square root of 3899392 is about 1974.6878234293. The cubic root of 3899392 is about 157.3979115027.

The spelling of 3899392 in words is "three million, eight hundred ninety-nine thousand, three hundred ninety-two".