994818431 has 4 divisors (see below), whose sum is σ = 999088272. Its totient is φ = 990548592.

The previous prime is 994818367. The next prime is 994818443. The reversal of 994818431 is 134818499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134818499 = 3697 ⋅36467.

It is a cyclic number.

It is not a de Polignac number, because 994818431 - 2⁶ = 994818367 is a prime.

It is a super-2 number, since 2×994818431² = 1979327421314603522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994818731) 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, 2134571 + ... + 2135036.

It is an arithmetic number, because the mean of its divisors is an integer number (249772068).

Almost surely, 2^994818431 is an apocalyptic number.

994818431 is a deficient number, since it is larger than the sum of its proper divisors (4269841).

994818431 is a wasteful number, since it uses less digits than its factorization.

994818431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269840.

The product of its digits is 248832, while the sum is 47.

The square root of 994818431 is about 31540.7423977306. The cubic root of 994818431 is about 998.2698185319.

The spelling of 994818431 in words is "nine hundred ninety-four million, eight hundred eighteen thousand, four hundred thirty-one".