68620772 has 48 divisors (see below), whose sum is σ = 139708800. Its totient is φ = 29145600.

The previous prime is 68620771. The next prime is 68620781. The reversal of 68620772 is 27702686.

It is not an unprimeable number, because it can be changed into a prime (68620771) 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, 148622 + ... + 149082.

It is an arithmetic number, because the mean of its divisors is an integer number (2910600).

Almost surely, 2^68620772 is an apocalyptic number.

It is an amenable number.

68620772 is an abundant number, since it is smaller than the sum of its proper divisors (71088028).

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

68620772 is a wasteful number, since it uses less digits than its factorization.

68620772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 68620772 is about 8283.7655688702. The cubic root of 68620772 is about 409.4037973410.

The spelling of 68620772 in words is "sixty-eight million, six hundred twenty thousand, seven hundred seventy-two".