13891892 has 18 divisors (see below), whose sum is σ = 28280322. Its totient is φ = 5953584.

The previous prime is 13891861. The next prime is 13891897. The reversal of 13891892 is 29819831.

It can be written as a sum of positive squares in only one way, i.e., 13868176 + 23716 = 3724^2 + 154^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13891897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35243 + ... + 35634.

It is an arithmetic number, because the mean of its divisors is an integer number (1571129).

Almost surely, 2^13891892 is an apocalyptic number.

It is an amenable number.

13891892 is an abundant number, since it is smaller than the sum of its proper divisors (14388430).

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

13891892 is a wasteful number, since it uses less digits than its factorization.

13891892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70895 (or 70886 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 13891892 is about 3727.1828503576. The cubic root of 13891892 is about 240.3922520789.

The spelling of 13891892 in words is "thirteen million, eight hundred ninety-one thousand, eight hundred ninety-two".