68900738 has 4 divisors (see below), whose sum is σ = 103351110. Its totient is φ = 34450368.

The previous prime is 68900701. The next prime is 68900761. The reversal of 68900738 is 83700986.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62932489 + 5968249 = 7933^2 + 2443^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68900695 and 68900704.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17225183 + ... + 17225186.

Almost surely, 2^68900738 is an apocalyptic number.

68900738 is a deficient number, since it is larger than the sum of its proper divisors (34450372).

68900738 is a wasteful number, since it uses less digits than its factorization.

68900738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34450371.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 68900738 is about 8300.6468422648. The cubic root of 68900738 is about 409.9598175968.

The spelling of 68900738 in words is "sixty-eight million, nine hundred thousand, seven hundred thirty-eight".