9976157 has 4 divisors (see below), whose sum is σ = 9984576. Its totient is φ = 9967740.

The previous prime is 9976151. The next prime is 9976171. The reversal of 9976157 is 7516799.

9976157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7516799 = 19 ⋅395621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9976157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9976151) 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, 2069 + ... + 4922.

It is an arithmetic number, because the mean of its divisors is an integer number (2496144).

Almost surely, 2^9976157 is an apocalyptic number.

It is an amenable number.

9976157 is a deficient number, since it is larger than the sum of its proper divisors (8419).

9976157 is a wasteful number, since it uses less digits than its factorization.

9976157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8418.

The product of its digits is 119070, while the sum is 44.

The square root of 9976157 is about 3158.5055010242. The cubic root of 9976157 is about 215.2721054492.

The spelling of 9976157 in words is "nine million, nine hundred seventy-six thousand, one hundred fifty-seven".