994815725 has 12 divisors (see below), whose sum is σ = 1237522356. Its totient is φ = 793303680.

The previous prime is 994815713. The next prime is 994815733. The reversal of 994815725 is 527518499.

It can be written as a sum of positive squares in 6 ways, for example, as 106894921 + 887920804 = 10339^2 + 29798^2 .

It is not a de Polignac number, because 994815725 - 2⁴ = 994815709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55742 + ... + 71391.

It is an arithmetic number, because the mean of its divisors is an integer number (103126863).

Almost surely, 2^994815725 is an apocalyptic number.

It is an amenable number.

994815725 is a deficient number, since it is larger than the sum of its proper divisors (242706631).

994815725 is a wasteful number, since it uses less digits than its factorization.

994815725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127456 (or 127451 counting only the distinct ones).

The product of its digits is 907200, while the sum is 50.

The square root of 994815725 is about 31540.6995008037. The cubic root of 994815725 is about 998.2689134017.

The spelling of 994815725 in words is "nine hundred ninety-four million, eight hundred fifteen thousand, seven hundred twenty-five".