994340087 has 4 divisors (see below), whose sum is σ = 1070827800. Its totient is φ = 917852376.

The previous prime is 994340069. The next prime is 994340089. The reversal of 994340087 is 780043499.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 994340087 - 2¹⁰ = 994339063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994340089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38243837 + ... + 38243862.

It is an arithmetic number, because the mean of its divisors is an integer number (267706950).

Almost surely, 2^994340087 is an apocalyptic number.

994340087 is a deficient number, since it is larger than the sum of its proper divisors (76487713).

994340087 is a wasteful number, since it uses less digits than its factorization.

994340087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76487712.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 994340087 is about 31533.1585319327. The cubic root of 994340087 is about 998.1097916971.

The spelling of 994340087 in words is "nine hundred ninety-four million, three hundred forty thousand, eighty-seven".