13732987 has 2 divisors, whose sum is σ = 13732988. Its totient is φ = 13732986.

The previous prime is 13732981. The next prime is 13733011. The reversal of 13732987 is 78923731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13732987 is a prime.

It is equal to p₈₉₃₈₅₇ and since 13732987 and 893857 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (13732981) by changing a digit.

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 as a sum of consecutive naturals, namely, 6866493 + 6866494.

It is an arithmetic number, because the mean of its divisors is an integer number (6866494).

Almost surely, 2^13732987 is an apocalyptic number.

13732987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13732987 is an equidigital number, since it uses as much as digits as its factorization.

13732987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 13732987 is about 3705.8045010497. The cubic root of 13732987 is about 239.4721442841.

It can be divided in two parts, 137 and 32987, that added together give a square (33124 = 182²).

The spelling of 13732987 in words is "thirteen million, seven hundred thirty-two thousand, nine hundred eighty-seven".