889961513 has 8 divisors (see below), whose sum is σ = 1033773120. Its totient is φ = 750318480.

The previous prime is 889961503. The next prime is 889961519. The reversal of 889961513 is 315169988.

It is a happy number.

889961513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 889961513 - 2¹⁴ = 889945129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (889961519) 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, 1041683 + ... + 1042536.

It is an arithmetic number, because the mean of its divisors is an integer number (129221640).

Almost surely, 2^889961513 is an apocalyptic number.

It is an amenable number.

889961513 is a deficient number, since it is larger than the sum of its proper divisors (143811607).

889961513 is a wasteful number, since it uses less digits than its factorization.

889961513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084287.

The product of its digits is 466560, while the sum is 50.

The square root of 889961513 is about 29832.2227297934. Note that the first 3 decimals coincide. The cubic root of 889961513 is about 961.8863059951.

It can be divided in two parts, 88996 and 1513, that added together give a palindrome (90509).

The spelling of 889961513 in words is "eight hundred eighty-nine million, nine hundred sixty-one thousand, five hundred thirteen".