61330863 has 16 divisors (see below), whose sum is σ = 90003456. Its totient is φ = 36839040.

The previous prime is 61330861. The next prime is 61330873. The reversal of 61330863 is 36803316.

It is not a de Polignac number, because 61330863 - 2¹ = 61330861 is a prime.

It is a super-2 number, since 2×61330863² = 7522949512649538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61330863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61330861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4495 + ... + 11952.

It is an arithmetic number, because the mean of its divisors is an integer number (5625216).

Almost surely, 2^61330863 is an apocalyptic number.

61330863 is a deficient number, since it is larger than the sum of its proper divisors (28672593).

61330863 is a wasteful number, since it uses less digits than its factorization.

61330863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16574.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 61330863 is about 7831.4023648386. The cubic root of 61330863 is about 394.3601519337.

The spelling of 61330863 in words is "sixty-one million, three hundred thirty thousand, eight hundred sixty-three".