845516487 has 8 divisors (see below), whose sum is σ = 1130701936. Its totient is φ = 562004352.

The previous prime is 845516479. The next prime is 845516527. The reversal of 845516487 is 784615548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 845516487 - 2³ = 845516479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845516407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417148 + ... + 419169.

It is an arithmetic number, because the mean of its divisors is an integer number (141337742).

Almost surely, 2^845516487 is an apocalyptic number.

845516487 is a deficient number, since it is larger than the sum of its proper divisors (285185449).

845516487 is a wasteful number, since it uses less digits than its factorization.

845516487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836657.

The product of its digits is 1075200, while the sum is 48.

The square root of 845516487 is about 29077.7661968728. The cubic root of 845516487 is about 945.5997749036.

It can be divided in two parts, 8455 and 16487, that added together give a palindrome (24942).

The spelling of 845516487 in words is "eight hundred forty-five million, five hundred sixteen thousand, four hundred eighty-seven".