13799554 has 4 divisors (see below), whose sum is σ = 20699334. Its totient is φ = 6899776.

The previous prime is 13799551. The next prime is 13799579. The reversal of 13799554 is 45599731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9891025 + 3908529 = 3145^2 + 1977^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13799554.

It is not an unprimeable number, because it can be changed into a prime (13799551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3449887 + ... + 3449890.

Almost surely, 2^13799554 is an apocalyptic number.

13799554 is a deficient number, since it is larger than the sum of its proper divisors (6899780).

13799554 is an equidigital number, since it uses as much as digits as its factorization.

13799554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6899779.

The product of its digits is 170100, while the sum is 43.

The square root of 13799554 is about 3714.7750941342. The cubic root of 13799554 is about 239.8584466200.

It can be divided in two parts, 137995 and 54, that multiplied together give a triangular number (7451730 = T₃₈₆₀).

The spelling of 13799554 in words is "thirteen million, seven hundred ninety-nine thousand, five hundred fifty-four".