994453747 has 4 divisors (see below), whose sum is σ = 1136518576. Its totient is φ = 852388920.

The previous prime is 994453727. The next prime is 994453751. The reversal of 994453747 is 747354499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 747354499 = 1867 ⋅400297.

It is a cyclic number.

It is not a de Polignac number, because 994453747 - 2¹¹ = 994451699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 994453694 and 994453703.

It is not an unprimeable number, because it can be changed into a prime (994453727) 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, 71032404 + ... + 71032417.

It is an arithmetic number, because the mean of its divisors is an integer number (284129644).

Almost surely, 2^994453747 is an apocalyptic number.

994453747 is a deficient number, since it is larger than the sum of its proper divisors (142064829).

994453747 is a wasteful number, since it uses less digits than its factorization.

994453747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142064828.

The product of its digits is 3810240, while the sum is 52.

The square root of 994453747 is about 31534.9607102974. The cubic root of 994453747 is about 998.1478205493.

The spelling of 994453747 in words is "nine hundred ninety-four million, four hundred fifty-three thousand, seven hundred forty-seven".