13387005 has 32 divisors (see below), whose sum is σ = 24261120. Its totient is φ = 7001280.

The previous prime is 13386991. The next prime is 13387043. The reversal of 13387005 is 50078331.

It is not a de Polignac number, because 13387005 - 2¹² = 13382909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13387005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6220 + ... + 8090.

It is an arithmetic number, because the mean of its divisors is an integer number (758160).

Almost surely, 2^13387005 is an apocalyptic number.

13387005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13387005 is a deficient number, since it is larger than the sum of its proper divisors (10874115).

13387005 is a wasteful number, since it uses less digits than its factorization.

13387005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938 (or 1932 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 13387005 is about 3658.8256312648. The cubic root of 13387005 is about 237.4439683147.

The spelling of 13387005 in words is "thirteen million, three hundred eighty-seven thousand, five".