13487923 has 2 divisors, whose sum is σ = 13487924. Its totient is φ = 13487922.

The previous prime is 13487921. The next prime is 13487963. The reversal of 13487923 is 32978431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13487923 - 2¹ = 13487921 is a prime.

It is a super-3 number, since 3×13487923³ (a number of 22 digits) contains 333 as substring.

Together with 13487921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13487921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6743961 + 6743962.

It is an arithmetic number, because the mean of its divisors is an integer number (6743962).

Almost surely, 2^13487923 is an apocalyptic number.

13487923 is a deficient number, since it is larger than the sum of its proper divisors (1).

13487923 is an equidigital number, since it uses as much as digits as its factorization.

13487923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 13487923 is about 3672.5907749163. The cubic root of 13487923 is about 238.0391327504.

The spelling of 13487923 in words is "thirteen million, four hundred eighty-seven thousand, nine hundred twenty-three".