60891880 has 64 divisors (see below), whose sum is σ = 162000000. Its totient is φ = 20154624.

The previous prime is 60891821. The next prime is 60891889. The reversal of 60891880 is 8819806.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (60891889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4371 + ... + 11869.

It is an arithmetic number, because the mean of its divisors is an integer number (2531250).

Almost surely, 2^60891880 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 60891880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81000000).

60891880 is an abundant number, since it is smaller than the sum of its proper divisors (101108120).

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

60891880 is a wasteful number, since it uses less digits than its factorization.

60891880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7546 (or 7542 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 60891880 is about 7803.3249323606. The cubic root of 60891880 is about 393.4170047668.

The spelling of 60891880 in words is "sixty million, eight hundred ninety-one thousand, eight hundred eighty".