1047925989 has 12 divisors (see below), whose sum is σ = 1651277472. Its totient is φ = 635106600.

The previous prime is 1047925987. The next prime is 1047925993. The reversal of 1047925989 is 9895297401.

1047925989 is a `hidden beast` number, since 1 + 0 + 47 + 9 + 2 + 598 + 9 = 666.

It is not a de Polignac number, because 1047925989 - 2¹ = 1047925987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047925987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5292457 + ... + 5292654.

It is an arithmetic number, because the mean of its divisors is an integer number (137606456).

Almost surely, 2^1047925989 is an apocalyptic number.

It is an amenable number.

1047925989 is a deficient number, since it is larger than the sum of its proper divisors (603351483).

1047925989 is a wasteful number, since it uses less digits than its factorization.

1047925989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10585128 (or 10585125 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The square root of 1047925989 is about 32371.6849885822. The cubic root of 1047925989 is about 1015.7267038935.

The spelling of 1047925989 in words is "one billion, forty-seven million, nine hundred twenty-five thousand, nine hundred eighty-nine".