9874157 has 2 divisors, whose sum is σ = 9874158. Its totient is φ = 9874156.

The previous prime is 9874147. The next prime is 9874169. The reversal of 9874157 is 7514789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7474756 + 2399401 = 2734^2 + 1549^2 .

It is a cyclic number.

It is not a de Polignac number, because 9874157 - 2⁴ = 9874141 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9874147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4937078 + 4937079.

It is an arithmetic number, because the mean of its divisors is an integer number (4937079).

Almost surely, 2^9874157 is an apocalyptic number.

It is an amenable number.

9874157 is a deficient number, since it is larger than the sum of its proper divisors (1).

9874157 is an equidigital number, since it uses as much as digits as its factorization.

9874157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 9874157 is about 3142.3171386733. The cubic root of 9874157 is about 214.5359162350.

The spelling of 9874157 in words is "nine million, eight hundred seventy-four thousand, one hundred fifty-seven".