994685407 has 4 divisors (see below), whose sum is σ = 999893376. Its totient is φ = 989477440.

The previous prime is 994685339. The next prime is 994685411. The reversal of 994685407 is 704586499.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704586499 = 3943 ⋅178693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994685407 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 (994685477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2603698 + ... + 2604079.

It is an arithmetic number, because the mean of its divisors is an integer number (249973344).

Almost surely, 2^994685407 is an apocalyptic number.

994685407 is a deficient number, since it is larger than the sum of its proper divisors (5207969).

994685407 is a wasteful number, since it uses less digits than its factorization.

994685407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207968.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 994685407 is about 31538.6335626641. The cubic root of 994685407 is about 998.2253213789.

The spelling of 994685407 in words is "nine hundred ninety-four million, six hundred eighty-five thousand, four hundred seven".