60778720 has 48 divisors (see below), whose sum is σ = 151154640. Its totient is φ = 23030784.

The previous prime is 60778709. The next prime is 60778721. The reversal of 60778720 is 2787706.

It is a self number, because there is not a number n which added to its sum of digits gives 60778720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60778721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6957 + ... + 13036.

It is an arithmetic number, because the mean of its divisors is an integer number (3149055).

Almost surely, 2^60778720 is an apocalyptic number.

It is an amenable number.

60778720 is an abundant number, since it is smaller than the sum of its proper divisors (90375920).

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

60778720 is a wasteful number, since it uses less digits than its factorization.

60778720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20027 (or 20019 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 60778720 is about 7796.0708052198. The cubic root of 60778720 is about 393.1731480901.

The spelling of 60778720 in words is "sixty million, seven hundred seventy-eight thousand, seven hundred twenty".