16742987 has 2 divisors, whose sum is σ = 16742988. Its totient is φ = 16742986.

The previous prime is 16742983. The next prime is 16743017. The reversal of 16742987 is 78924761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16742987 - 2² = 16742983 is a prime.

It is a super-2 number, since 2×16742987² = 560655227364338, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16742983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8371493 + 8371494.

It is an arithmetic number, because the mean of its divisors is an integer number (8371494).

Almost surely, 2^16742987 is an apocalyptic number.

16742987 is a deficient number, since it is larger than the sum of its proper divisors (1).

16742987 is an equidigital number, since it uses as much as digits as its factorization.

16742987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 44.

The square root of 16742987 is about 4091.8195219242. The cubic root of 16742987 is about 255.8257837702.

The spelling of 16742987 in words is "sixteen million, seven hundred forty-two thousand, nine hundred eighty-seven".