994790409 has 8 divisors (see below), whose sum is σ = 1326727200. Its totient is φ = 663023616.

The previous prime is 994790389. The next prime is 994790497. The reversal of 994790409 is 904097499.

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

It is not a de Polignac number, because 994790409 - 2¹⁹ = 994266121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (994790009) 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, 28152 + ... + 52745.

It is an arithmetic number, because the mean of its divisors is an integer number (165840900).

Almost surely, 2^994790409 is an apocalyptic number.

It is an amenable number.

994790409 is a deficient number, since it is larger than the sum of its proper divisors (331936791).

994790409 is a wasteful number, since it uses less digits than its factorization.

994790409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84999.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 994790409 is about 31540.2981755087. The cubic root of 994790409 is about 998.2604453710.

The spelling of 994790409 in words is "nine hundred ninety-four million, seven hundred ninety thousand, four hundred nine".