5298661 has 4 divisors (see below), whose sum is σ = 5319072. Its totient is φ = 5278252.

The previous prime is 5298647. The next prime is 5298673. The reversal of 5298661 is 1668925.

5298661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5298661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5298661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5298691) 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, 9811 + ... + 10336.

It is an arithmetic number, because the mean of its divisors is an integer number (1329768).

Almost surely, 2^5298661 is an apocalyptic number.

It is an amenable number.

5298661 is a deficient number, since it is larger than the sum of its proper divisors (20411).

5298661 is a wasteful number, since it uses less digits than its factorization.

5298661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20410.

The product of its digits is 25920, while the sum is 37.

The square root of 5298661 is about 2301.8820560576. The cubic root of 5298661 is about 174.3366560946.

The spelling of 5298661 in words is "five million, two hundred ninety-eight thousand, six hundred sixty-one".