13641772 has 12 divisors (see below), whose sum is σ = 25129720. Its totient is φ = 6461856.

The previous prime is 13641763. The next prime is 13641781. The reversal of 13641772 is 27714631.

It is an interprime number because it is at equal distance from previous prime (13641763) and next prime (13641781).

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, 89673 + ... + 89824.

Almost surely, 2^13641772 is an apocalyptic number.

It is an amenable number.

13641772 is a deficient number, since it is larger than the sum of its proper divisors (11487948).

13641772 is a wasteful number, since it uses less digits than its factorization.

13641772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179520 (or 179518 counting only the distinct ones).

The product of its digits is 7056, while the sum is 31.

The square root of 13641772 is about 3693.4769526829. The cubic root of 13641772 is about 238.9407718410.

It can be divided in two parts, 1364 and 1772, that added together give a square (3136 = 56²).

The spelling of 13641772 in words is "thirteen million, six hundred forty-one thousand, seven hundred seventy-two".