13098623 has 4 divisors (see below), whose sum is σ = 13125168. Its totient is φ = 13072080.

The previous prime is 13098611. The next prime is 13098637. The reversal of 13098623 is 32689031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32689031 = 4909 ⋅6659.

It is a cyclic number.

It is not a de Polignac number, because 13098623 - 2¹⁶ = 13033087 is a prime.

It is a super-2 number, since 2×13098623² = 343147848992258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13098623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13098643) 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, 12518 + ... + 13523.

It is an arithmetic number, because the mean of its divisors is an integer number (3281292).

Almost surely, 2^13098623 is an apocalyptic number.

13098623 is a deficient number, since it is larger than the sum of its proper divisors (26545).

13098623 is an equidigital number, since it uses as much as digits as its factorization.

13098623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26544.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 13098623 is about 3619.2019838633. The cubic root of 13098623 is about 235.7265757552.

The spelling of 13098623 in words is "thirteen million, ninety-eight thousand, six hundred twenty-three".