61701863 has 4 divisors (see below), whose sum is σ = 62547168. Its totient is φ = 60856560.

The previous prime is 61701859. The next prime is 61701869. The reversal of 61701863 is 36810716.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61701863 - 2² = 61701859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61701869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422543 + ... + 422688.

It is an arithmetic number, because the mean of its divisors is an integer number (15636792).

Almost surely, 2^61701863 is an apocalyptic number.

61701863 is a deficient number, since it is larger than the sum of its proper divisors (845305).

61701863 is an equidigital number, since it uses as much as digits as its factorization.

61701863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845304.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 61701863 is about 7855.0533416394. The cubic root of 61701863 is about 395.1537360234.

The spelling of 61701863 in words is "sixty-one million, seven hundred one thousand, eight hundred sixty-three".