61048890 has 192 divisors, whose sum is σ = 195197184. Its totient is φ = 13436928.

The previous prime is 61048873. The next prime is 61048901. The reversal of 61048890 is 9884016.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 629322 + ... + 629418.

It is an arithmetic number, because the mean of its divisors is an integer number (1016652).

Almost surely, 2^61048890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61048890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97598592).

61048890 is an abundant number, since it is smaller than the sum of its proper divisors (134148294).

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

61048890 is a wasteful number, since it uses less digits than its factorization.

61048890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 61048890 is about 7813.3789105610. The cubic root of 61048890 is about 393.7548570829.

The spelling of 61048890 in words is "sixty-one million, forty-eight thousand, eight hundred ninety".