13290487 has 4 divisors (see below), whose sum is σ = 15189136. Its totient is φ = 11391840.

The previous prime is 13290467. The next prime is 13290491. The reversal of 13290487 is 78409231.

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

It is a cyclic number.

It is not a de Polignac number, because 13290487 - 2¹⁹ = 12766199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13290467) 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, 949314 + ... + 949327.

It is an arithmetic number, because the mean of its divisors is an integer number (3797284).

Almost surely, 2^13290487 is an apocalyptic number.

13290487 is a deficient number, since it is larger than the sum of its proper divisors (1898649).

13290487 is an equidigital number, since it uses as much as digits as its factorization.

13290487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898648.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 13290487 is about 3645.6120199495. The cubic root of 13290487 is about 236.8719480117.

The spelling of 13290487 in words is "thirteen million, two hundred ninety thousand, four hundred eighty-seven".