1906087 has 2 divisors, whose sum is σ = 1906088. Its totient is φ = 1906086.

The previous prime is 1906063. The next prime is 1906109. The reversal of 1906087 is 7806091.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1906087 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1906007) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953043 + 953044.

It is an arithmetic number, because the mean of its divisors is an integer number (953044).

2^1906087 is an apocalyptic number.

1906087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1906087 is an equidigital number, since it uses as much as digits as its factorization.

1906087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1906087 is about 1380.6110965801. The cubic root of 1906087 is about 123.9883573876.

The spelling of 1906087 in words is "one million, nine hundred six thousand, eighty-seven".