5961640 has 32 divisors (see below), whose sum is σ = 13553280. Its totient is φ = 2359872.

The previous prime is 5961587. The next prime is 5961643. The reversal of 5961640 is 461695.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (5961643) 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, 3397 + ... + 4843.

It is an arithmetic number, because the mean of its divisors is an integer number (423540).

Almost surely, 2^5961640 is an apocalyptic number.

It is an amenable number.

5961640 is an abundant number, since it is smaller than the sum of its proper divisors (7591640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5961640 is a wasteful number, since it uses less digits than its factorization.

5961640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 5961640 is about 2441.6469851311. The cubic root of 5961640 is about 181.3239824811.

Subtracting from 5961640 its reverse (461695), we obtain a palindrome (5499945).

The spelling of 5961640 in words is "five million, nine hundred sixty-one thousand, six hundred forty".