61787360 has 48 divisors (see below), whose sum is σ = 147646800. Its totient is φ = 24431616.

The previous prime is 61787359. The next prime is 61787377. The reversal of 61787360 is 6378716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12071 + ... + 16409.

It is an arithmetic number, because the mean of its divisors is an integer number (3075975).

Almost surely, 2^61787360 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 61787360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73823400).

61787360 is an abundant number, since it is smaller than the sum of its proper divisors (85859440).

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

61787360 is a wasteful number, since it uses less digits than its factorization.

61787360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443 (or 4435 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 61787360 is about 7860.4936231766. The cubic root of 61787360 is about 395.3361663148.

The spelling of 61787360 in words is "sixty-one million, seven hundred eighty-seven thousand, three hundred sixty".