13864761 has 12 divisors (see below), whose sum is σ = 20205588. Its totient is φ = 9160704.

The previous prime is 13864759. The next prime is 13864769. The reversal of 13864761 is 16746831.

13864761 is a `hidden beast` number, since 1 + 3 + 8 + 647 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3980025 + 9884736 = 1995^2 + 3144^2 .

It is not a de Polignac number, because 13864761 - 2¹ = 13864759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13864769) 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, 5800 + ... + 7833.

It is an arithmetic number, because the mean of its divisors is an integer number (1683799).

Almost surely, 2^13864761 is an apocalyptic number.

It is an amenable number.

13864761 is a deficient number, since it is larger than the sum of its proper divisors (6340827).

13864761 is a wasteful number, since it uses less digits than its factorization.

13864761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13752 (or 13749 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 13864761 is about 3723.5414594174. The cubic root of 13864761 is about 240.2356539543.

The spelling of 13864761 in words is "thirteen million, eight hundred sixty-four thousand, seven hundred sixty-one".