13764449 has 4 divisors (see below), whose sum is σ = 13804464. Its totient is φ = 13724436.

The previous prime is 13764437. The next prime is 13764451. The reversal of 13764449 is 94446731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94446731 = 4159 ⋅22709.

It is a cyclic number.

It is not a de Polignac number, because 13764449 - 2⁴ = 13764433 is a prime.

It is a super-3 number, since 3×13764449³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13764409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19487 + ... + 20180.

It is an arithmetic number, because the mean of its divisors is an integer number (3451116).

Almost surely, 2^13764449 is an apocalyptic number.

It is an amenable number.

13764449 is a deficient number, since it is larger than the sum of its proper divisors (40015).

13764449 is an equidigital number, since it uses as much as digits as its factorization.

13764449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40014.

The product of its digits is 72576, while the sum is 38.

The square root of 13764449 is about 3710.0470347423. The cubic root of 13764449 is about 239.6548801131.

The spelling of 13764449 in words is "thirteen million, seven hundred sixty-four thousand, four hundred forty-nine".