13889061 has 6 divisors (see below), whose sum is σ = 20061990. Its totient is φ = 9259368.

The previous prime is 13889059. The next prime is 13889063. The reversal of 13889061 is 16098831.

It is an interprime number because it is at equal distance from previous prime (13889059) and next prime (13889063).

It can be written as a sum of positive squares in only one way, i.e., 13068225 + 820836 = 3615^2 + 906^2 .

It is not a de Polignac number, because 13889061 - 2¹ = 13889059 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889063) 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, 771606 + ... + 771623.

It is an arithmetic number, because the mean of its divisors is an integer number (3343665).

Almost surely, 2^13889061 is an apocalyptic number.

It is an amenable number.

13889061 is a deficient number, since it is larger than the sum of its proper divisors (6172929).

13889061 is a wasteful number, since it uses less digits than its factorization.

13889061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543235 (or 1543232 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 13889061 is about 3726.8030535568. The cubic root of 13889061 is about 240.3759212892.

The spelling of 13889061 in words is "thirteen million, eight hundred eighty-nine thousand, sixty-one".