13772899 has 8 divisors (see below), whose sum is σ = 15776000. Its totient is φ = 11778696.

The previous prime is 13772881. The next prime is 13772903. The reversal of 13772899 is 99827731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13772899 - 2⁵ = 13772867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13772809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1522 + ... + 5464.

It is an arithmetic number, because the mean of its divisors is an integer number (1972000).

Almost surely, 2^13772899 is an apocalyptic number.

13772899 is a deficient number, since it is larger than the sum of its proper divisors (2003101).

13772899 is an equidigital number, since it uses as much as digits as its factorization.

13772899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449.

The product of its digits is 190512, while the sum is 46.

The square root of 13772899 is about 3711.1856595972. The cubic root of 13772899 is about 239.7039114856.

The spelling of 13772899 in words is "thirteen million, seven hundred seventy-two thousand, eight hundred ninety-nine".