60991392 has 192 divisors, whose sum is σ = 205922304. Its totient is φ = 15344640.

The previous prime is 60991367. The next prime is 60991421. The reversal of 60991392 is 29319906.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 60991392.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273393 + ... + 273615.

It is an arithmetic number, because the mean of its divisors is an integer number (1072512).

Almost surely, 2^60991392 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 60991392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102961152).

60991392 is an abundant number, since it is smaller than the sum of its proper divisors (144930912).

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

60991392 is a wasteful number, since it uses less digits than its factorization.

60991392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 60991392 is about 7809.6985857330. The cubic root of 60991392 is about 393.6312008448.

The spelling of 60991392 in words is "sixty million, nine hundred ninety-one thousand, three hundred ninety-two".