2904647985 has 64 divisors (see below), whose sum is σ = 5315880960. Its totient is φ = 1504198080.

The previous prime is 2904647947. The next prime is 2904648031. The reversal of 2904647985 is 5897464092.

2904647985 is a `hidden beast` number, since 2 + 90 + 4 + 6 + 479 + 85 = 666.

It is not a de Polignac number, because 2904647985 - 2¹¹ = 2904645937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 639934 + ... + 644456.

It is an arithmetic number, because the mean of its divisors is an integer number (83060640).

Almost surely, 2^2904647985 is an apocalyptic number.

It is an amenable number.

2904647985 is a deficient number, since it is larger than the sum of its proper divisors (2411232975).

2904647985 is a wasteful number, since it uses less digits than its factorization.

2904647985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675 (or 4669 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The square root of 2904647985 is about 53894.7862506198. The cubic root of 2904647985 is about 1426.8046056676.

The spelling of 2904647985 in words is "two billion, nine hundred four million, six hundred forty-seven thousand, nine hundred eighty-five".