13958089 has 4 divisors (see below), whose sum is σ = 14031360. Its totient is φ = 13884820.

The previous prime is 13958053. The next prime is 13958093. The reversal of 13958089 is 98085931.

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: 98085931 = 1303 ⋅75277.

It is a cyclic number.

It is not a de Polignac number, because 13958089 - 2⁹ = 13957577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13958689) 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, 36349 + ... + 36730.

It is an arithmetic number, because the mean of its divisors is an integer number (3507840).

Almost surely, 2^13958089 is an apocalyptic number.

It is an amenable number.

13958089 is a deficient number, since it is larger than the sum of its proper divisors (73271).

13958089 is an equidigital number, since it uses as much as digits as its factorization.

13958089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73270.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 13958089 is about 3736.0525959895. The cubic root of 13958089 is about 240.7734825179.

It can be divided in two parts, 139580 and 89, that multiplied together give a triangular number (12422620 = T₄₉₈₄).

The spelling of 13958089 in words is "thirteen million, nine hundred fifty-eight thousand, eighty-nine".