959997481 has 4 divisors (see below), whose sum is σ = 960698052. Its totient is φ = 959296912.

The previous prime is 959997433. The next prime is 959997503. The reversal of 959997481 is 184799959.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 184799959 = 31 ⋅5961289.

It can be written as a sum of positive squares in 2 ways, for example, as 688275225 + 271722256 = 26235^2 + 16484^2 .

It is a cyclic number.

It is not a de Polignac number, because 959997481 - 2²⁹ = 423126569 is a prime.

It is a super-2 number, since 2×959997481² = 1843190327052690722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (959997421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348226 + ... + 350971.

It is an arithmetic number, because the mean of its divisors is an integer number (240174513).

Almost surely, 2^959997481 is an apocalyptic number.

It is an amenable number.

959997481 is a deficient number, since it is larger than the sum of its proper divisors (700571).

959997481 is a wasteful number, since it uses less digits than its factorization.

959997481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700570.

The product of its digits is 7348320, while the sum is 61.

The square root of 959997481 is about 30983.8261194450. The cubic root of 959997481 is about 986.4839668997.

The spelling of 959997481 in words is "nine hundred fifty-nine million, nine hundred ninety-seven thousand, four hundred eighty-one".