61998710 has 16 divisors (see below), whose sum is σ = 117471600. Its totient is φ = 23494176.

The previous prime is 61998701. The next prime is 61998719. The reversal of 61998710 is 1789916.

It is a happy number.

61998710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61998701) and next prime (61998719).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61998719) 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 7 ways as a sum of consecutive naturals, for example, 162965 + ... + 163344.

It is an arithmetic number, because the mean of its divisors is an integer number (7341975).

Almost surely, 2^61998710 is an apocalyptic number.

61998710 is a deficient number, since it is larger than the sum of its proper divisors (55472890).

61998710 is a wasteful number, since it uses less digits than its factorization.

61998710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326335.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 61998710 is about 7873.9259585038. The cubic root of 61998710 is about 395.7864159597.

The spelling of 61998710 in words is "sixty-one million, nine hundred ninety-eight thousand, seven hundred ten".