9800723738 has 8 divisors (see below), whose sum is σ = 15831938388. Its totient is φ = 4523410944.

The previous prime is 9800723707. The next prime is 9800723741. The reversal of 9800723738 is 8373270089.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8679344569 + 1121379169 = 93163^2 + 33487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 9800723692 and 9800723701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188475431 + ... + 188475482.

Almost surely, 2^9800723738 is an apocalyptic number.

9800723738 is a deficient number, since it is larger than the sum of its proper divisors (6031214650).

9800723738 is a wasteful number, since it uses less digits than its factorization.

9800723738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376950928.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 9800723738 is about 98998.6047275415. The cubic root of 9800723738 is about 2140.0276394660.

The spelling of 9800723738 in words is "nine billion, eight hundred million, seven hundred twenty-three thousand, seven hundred thirty-eight".