994087 has 2 divisors, whose sum is σ = 994088. Its totient is φ = 994086.

The previous prime is 994073. The next prime is 994093. The reversal of 994087 is 780499.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (780499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 994087 - 2¹⁵ = 961319 is a 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 (994027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497043 + 497044.

It is an arithmetic number, because the mean of its divisors is an integer number (497044).

2⁹⁹⁴⁰⁸⁷ is an apocalyptic number.

994087 is a deficient number, since it is larger than the sum of its proper divisors (1).

994087 is an equidigital number, since it uses as much as digits as its factorization.

994087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 994087 is about 997.0391165847. The cubic root of 994087 is about 99.8025102347.

It can be divided in two parts, 99 and 4087, that added together give a triangular number (4186 = T₉₁).

The spelling of 994087 in words is "nine hundred ninety-four thousand, eighty-seven".