994678431 has 8 divisors (see below), whose sum is σ = 1369019904. Its totient is φ = 641727960.

The previous prime is 994678429. The next prime is 994678459. The reversal of 994678431 is 134876499.

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

It is not a de Polignac number, because 994678431 - 2¹ = 994678429 is a prime.

It is a super-2 number, since 2×994678431² = 1978770362193243522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994678411) 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, 5347641 + ... + 5347826.

It is an arithmetic number, because the mean of its divisors is an integer number (171127488).

Almost surely, 2^994678431 is an apocalyptic number.

994678431 is a deficient number, since it is larger than the sum of its proper divisors (374341473).

994678431 is a wasteful number, since it uses less digits than its factorization.

994678431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10695501.

The product of its digits is 1306368, while the sum is 51.

The square root of 994678431 is about 31538.5229679514. The cubic root of 994678431 is about 998.2229877646. Note that the first 3 decimals are identical.

The spelling of 994678431 in words is "nine hundred ninety-four million, six hundred seventy-eight thousand, four hundred thirty-one".