60991200 has 216 divisors, whose sum is σ = 221188968. Its totient is φ = 15805440.

The previous prime is 60991199. The next prime is 60991219. The reversal of 60991200 is 219906.

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 35 ways as a sum of consecutive naturals, for example, 309502 + ... + 309698.

It is an arithmetic number, because the mean of its divisors is an integer number (1024023).

Almost surely, 2^60991200 is an apocalyptic number.

60991200 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60991200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110594484).

60991200 is an abundant number, since it is smaller than the sum of its proper divisors (160197768).

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

60991200 is a wasteful number, since it uses less digits than its factorization.

60991200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 60991200 is about 7809.6862933155. The cubic root of 60991200 is about 393.6307877959.

It can be divided in two parts, 609 and 91200, that added together give a square (91809 = 303²).

The spelling of 60991200 in words is "sixty million, nine hundred ninety-one thousand, two hundred".