16934387 has 2 divisors, whose sum is σ = 16934388. Its totient is φ = 16934386.

The previous prime is 16934383. The next prime is 16934441. The reversal of 16934387 is 78343961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16934387 - 2² = 16934383 is a prime.

It is not a weakly prime, because it can be changed into another prime (16934381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8467193 + 8467194.

It is an arithmetic number, because the mean of its divisors is an integer number (8467194).

Almost surely, 2^16934387 is an apocalyptic number.

16934387 is a deficient number, since it is larger than the sum of its proper divisors (1).

16934387 is an equidigital number, since it uses as much as digits as its factorization.

16934387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 16934387 is about 4115.1411883434. The cubic root of 16934387 is about 256.7969296240.

The spelling of 16934387 in words is "sixteen million, nine hundred thirty-four thousand, three hundred eighty-seven".