13620049 has 4 divisors (see below), whose sum is σ = 13710400. Its totient is φ = 13529700.

The previous prime is 13620041. The next prime is 13620059. The reversal of 13620049 is 94002631.

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: 94002631 = 439 ⋅214129.

It is a cyclic number.

It is not a de Polignac number, because 13620049 - 2³ = 13620041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13620041) 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, 44949 + ... + 45250.

It is an arithmetic number, because the mean of its divisors is an integer number (3427600).

Almost surely, 2^13620049 is an apocalyptic number.

It is an amenable number.

13620049 is a deficient number, since it is larger than the sum of its proper divisors (90351).

13620049 is an equidigital number, since it uses as much as digits as its factorization.

13620049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90350.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13620049 is about 3690.5350560589. The cubic root of 13620049 is about 238.8138756203.

The spelling of 13620049 in words is "thirteen million, six hundred twenty thousand, forty-nine".