3969392 has 60 divisors (see below), whose sum is σ = 9202536. Its totient is φ = 1653120.

The previous prime is 3969391. The next prime is 3969419. The reversal of 3969392 is 2939693.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47783 + ... + 47865.

Almost surely, 2^3969392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3969392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4601268).

3969392 is an abundant number, since it is smaller than the sum of its proper divisors (5233144).

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

3969392 is a wasteful number, since it uses less digits than its factorization.

3969392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 153 counting only the distinct ones).

The product of its digits is 78732, while the sum is 41.

The square root of 3969392 is about 1992.3333054487. Note that the first 4 decimals coincide. The cubic root of 3969392 is about 158.3341749417.

The spelling of 3969392 in words is "three million, nine hundred sixty-nine thousand, three hundred ninety-two".