61097064 has 64 divisors (see below), whose sum is σ = 179299200. Its totient is φ = 16982784.

The previous prime is 61097053. The next prime is 61097081. The reversal of 61097064 is 46079016.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1302 + ... + 11130.

It is an arithmetic number, because the mean of its divisors is an integer number (2801550).

Almost surely, 2^61097064 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 61097064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89649600).

61097064 is an abundant number, since it is smaller than the sum of its proper divisors (118202136).

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

61097064 is a wasteful number, since it uses less digits than its factorization.

61097064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9882 (or 9878 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 61097064 is about 7816.4610918241. The cubic root of 61097064 is about 393.8584011945.

The spelling of 61097064 in words is "sixty-one million, ninety-seven thousand, sixty-four".