981746513 has 8 divisors (see below), whose sum is σ = 1117561536. Its totient is φ = 853692400.

The previous prime is 981746429. The next prime is 981746569. The reversal of 981746513 is 315647189.

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

It is not a de Polignac number, because 981746513 - 2⁸ = 981746257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (981746593) 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, 1939958 + ... + 1940463.

It is an arithmetic number, because the mean of its divisors is an integer number (139695192).

Almost surely, 2^981746513 is an apocalyptic number.

It is an amenable number.

981746513 is a deficient number, since it is larger than the sum of its proper divisors (135815023).

981746513 is a wasteful number, since it uses less digits than its factorization.

981746513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880455.

The product of its digits is 181440, while the sum is 44.

The square root of 981746513 is about 31332.8344233330. The cubic root of 981746513 is about 993.8781031908.

The spelling of 981746513 in words is "nine hundred eighty-one million, seven hundred forty-six thousand, five hundred thirteen".