994676421 has 8 divisors (see below), whose sum is σ = 1326383680. Its totient is φ = 663043392.

The previous prime is 994676407. The next prime is 994676437. The reversal of 994676421 is 124676499.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 994676421 - 2²² = 990482117 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 (994676401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33885 + ... + 56013.

It is an arithmetic number, because the mean of its divisors is an integer number (165797960).

Almost surely, 2^994676421 is an apocalyptic number.

It is an amenable number.

994676421 is a deficient number, since it is larger than the sum of its proper divisors (331707259).

994676421 is a wasteful number, since it uses less digits than its factorization.

994676421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37115.

The product of its digits is 653184, while the sum is 48.

The square root of 994676421 is about 31538.4911021437. The cubic root of 994676421 is about 998.2223153766. Note that the first 3 decimals are identical.

The spelling of 994676421 in words is "nine hundred ninety-four million, six hundred seventy-six thousand, four hundred twenty-one".