61863116 has 24 divisors (see below), whose sum is σ = 124427520. Its totient is φ = 26362512.

The previous prime is 61863101. The next prime is 61863127. The reversal of 61863116 is 61136816.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160 + ... + 11183.

It is an arithmetic number, because the mean of its divisors is an integer number (5184480).

Almost surely, 2^61863116 is an apocalyptic number.

It is an amenable number.

61863116 is an abundant number, since it is smaller than the sum of its proper divisors (62564404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61863116 is a wasteful number, since it uses less digits than its factorization.

61863116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12533 (or 12531 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 61863116 is about 7865.3109283740. The cubic root of 61863116 is about 395.4976710572.

The spelling of 61863116 in words is "sixty-one million, eight hundred sixty-three thousand, one hundred sixteen".