13908465 has 24 divisors (see below), whose sum is σ = 25527528. Its totient is φ = 6981120.

The previous prime is 13908451. The next prime is 13908481. The reversal of 13908465 is 56480931.

It can be written as a sum of positive squares in 4 ways, for example, as 6471936 + 7436529 = 2544^2 + 2727^2 .

It is not a de Polignac number, because 13908465 - 2⁹ = 13907953 is a prime.

It is a super-3 number, since 3×13908465³ (a number of 22 digits) contains 333 as substring.

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 23 ways as a sum of consecutive naturals, for example, 8326 + ... + 9855.

It is an arithmetic number, because the mean of its divisors is an integer number (1063647).

Almost surely, 2^13908465 is an apocalyptic number.

13908465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13908465 is a deficient number, since it is larger than the sum of its proper divisors (11619063).

13908465 is a wasteful number, since it uses less digits than its factorization.

13908465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18209 (or 18206 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 13908465 is about 3729.4054485936. The cubic root of 13908465 is about 240.4878099178.

The spelling of 13908465 in words is "thirteen million, nine hundred eight thousand, four hundred sixty-five".