1002907985 has 16 divisors (see below), whose sum is σ = 1257621120. Its totient is φ = 766339200.

The previous prime is 1002907973. The next prime is 1002907987. The reversal of 1002907985 is 5897092001.

It is not a de Polignac number, because 1002907985 - 2⁶ = 1002907921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002907987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79085 + ... + 90885.

It is an arithmetic number, because the mean of its divisors is an integer number (78601320).

Almost surely, 2^1002907985 is an apocalyptic number.

It is an amenable number.

1002907985 is a deficient number, since it is larger than the sum of its proper divisors (254713135).

1002907985 is a wasteful number, since it uses less digits than its factorization.

1002907985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12568.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 1002907985 is about 31668.7225034418. The cubic root of 1002907985 is about 1000.9683902509.

Adding to 1002907985 its reverse (5897092001), we get a palindrome (6899999986).

The spelling of 1002907985 in words is "one billion, two million, nine hundred seven thousand, nine hundred eighty-five".