985925517 has 16 divisors (see below), whose sum is σ = 1333882560. Its totient is φ = 647644032.

The previous prime is 985925513. The next prime is 985925531. The reversal of 985925517 is 715529589.

It is not a de Polignac number, because 985925517 - 2² = 985925513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 985925517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985925513) 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, 348334 + ... + 351152.

It is an arithmetic number, because the mean of its divisors is an integer number (83367660).

Almost surely, 2^985925517 is an apocalyptic number.

It is an amenable number.

985925517 is a deficient number, since it is larger than the sum of its proper divisors (347957043).

985925517 is a wasteful number, since it uses less digits than its factorization.

985925517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492.

The product of its digits is 1134000, while the sum is 51.

The square root of 985925517 is about 31399.4509028422. The cubic root of 985925517 is about 995.2863218153.

The spelling of 985925517 in words is "nine hundred eighty-five million, nine hundred twenty-five thousand, five hundred seventeen".