61103808 has 84 divisors (see below), whose sum is σ = 181676040. Its totient is φ = 20362752.

The previous prime is 61103789. The next prime is 61103813. The reversal of 61103808 is 80830116.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13588 + ... + 17516.

It is an arithmetic number, because the mean of its divisors is an integer number (2162810).

Almost surely, 2^61103808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61103808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90838020).

61103808 is an abundant number, since it is smaller than the sum of its proper divisors (120572232).

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

61103808 is an equidigital number, since it uses as much as digits as its factorization.

61103808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956 (or 3934 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 61103808 is about 7816.8924771932. The cubic root of 61103808 is about 393.8728922527.

The spelling of 61103808 in words is "sixty-one million, one hundred three thousand, eight hundred eight".