61298713 has 4 divisors (see below), whose sum is σ = 70055680. Its totient is φ = 52541748.

The previous prime is 61298711. The next prime is 61298759. The reversal of 61298713 is 31789216.

61298713 is digitally balanced in base 2, 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 not a de Polignac number, because 61298713 - 2¹ = 61298711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61298711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4378473 + ... + 4378486.

It is an arithmetic number, because the mean of its divisors is an integer number (17513920).

Almost surely, 2^61298713 is an apocalyptic number.

It is an amenable number.

61298713 is a deficient number, since it is larger than the sum of its proper divisors (8756967).

61298713 is an equidigital number, since it uses as much as digits as its factorization.

61298713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8756966.

The product of its digits is 18144, while the sum is 37.

The square root of 61298713 is about 7829.3494621201. The cubic root of 61298713 is about 394.2912312505.

The spelling of 61298713 in words is "sixty-one million, two hundred ninety-eight thousand, seven hundred thirteen".