68737748 has 6 divisors (see below), whose sum is σ = 120291066. Its totient is φ = 34368872.

The previous prime is 68737741. The next prime is 68737811. The reversal of 68737748 is 84773786.

It can be written as a sum of positive squares in only one way, i.e., 56821444 + 11916304 = 7538^2 + 3452^2 .

It is a super-2 number, since 2×68737748² = 9449756000223008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68737696 and 68737705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68737741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8592215 + ... + 8592222.

It is an arithmetic number, because the mean of its divisors is an integer number (20048511).

Almost surely, 2^68737748 is an apocalyptic number.

It is an amenable number.

68737748 is a deficient number, since it is larger than the sum of its proper divisors (51553318).

68737748 is a wasteful number, since it uses less digits than its factorization.

68737748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17184441 (or 17184439 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The square root of 68737748 is about 8290.8231195702. The cubic root of 68737748 is about 409.6362985232.

The spelling of 68737748 in words is "sixty-eight million, seven hundred thirty-seven thousand, seven hundred forty-eight".