959531649 has 16 divisors (see below), whose sum is σ = 1308407808. Its totient is φ = 625209552.

The previous prime is 959531603. The next prime is 959531653. The reversal of 959531649 is 946135959.

It is not a de Polignac number, because 959531649 - 2¹⁶ = 959466113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (959531659) 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, 106644 + ... + 115290.

It is an arithmetic number, because the mean of its divisors is an integer number (81775488).

Almost surely, 2^959531649 is an apocalyptic number.

It is an amenable number.

959531649 is a deficient number, since it is larger than the sum of its proper divisors (348876159).

959531649 is a wasteful number, since it uses less digits than its factorization.

959531649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9484.

The product of its digits is 1312200, while the sum is 51.

The square root of 959531649 is about 30976.3078658513. The cubic root of 959531649 is about 986.3243796240.

The spelling of 959531649 in words is "nine hundred fifty-nine million, five hundred thirty-one thousand, six hundred forty-nine".