68738976 has 48 divisors (see below), whose sum is σ = 200491200. Its totient is φ = 22912704.

The previous prime is 68738963. The next prime is 68738977. The reversal of 68738976 is 67983786.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68738977) 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, 38916 + ... + 40643.

It is an arithmetic number, because the mean of its divisors is an integer number (4176900).

Almost surely, 2^68738976 is an apocalyptic number.

It is an amenable number.

68738976 is an abundant number, since it is smaller than the sum of its proper divisors (131752224).

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

68738976 is a wasteful number, since it uses less digits than its factorization.

68738976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79578 (or 79564 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 68738976 is about 8290.8971770249. The cubic root of 68738976 is about 409.6387378931.

The spelling of 68738976 in words is "sixty-eight million, seven hundred thirty-eight thousand, nine hundred seventy-six".