9957698 has 8 divisors (see below), whose sum is σ = 14951820. Its totient is φ = 4973760.

The previous prime is 9957697. The next prime is 9957737. The reversal of 9957698 is 8967599.

9957698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8196769 + 1760929 = 2863^2 + 1327^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9957697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758 + ... + 4526.

Almost surely, 2^9957698 is an apocalyptic number.

9957698 is a deficient number, since it is larger than the sum of its proper divisors (4994122).

9957698 is a wasteful number, since it uses less digits than its factorization.

9957698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092.

The product of its digits is 1224720, while the sum is 53.

The square root of 9957698 is about 3155.5820382300. The cubic root of 9957698 is about 215.1392499758.

Subtracting from 9957698 its reverse (8967599), we obtain a palindrome (990099).

The spelling of 9957698 in words is "nine million, nine hundred fifty-seven thousand, six hundred ninety-eight".