9157982 has 4 divisors (see below), whose sum is σ = 13736976. Its totient is φ = 4578990.

The previous prime is 9157969. The next prime is 9158003. The reversal of 9157982 is 2897519.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2897519 = 19 ⋅152501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2289494 + ... + 2289497.

It is an arithmetic number, because the mean of its divisors is an integer number (3434244).

Almost surely, 2^9157982 is an apocalyptic number.

9157982 is a deficient number, since it is larger than the sum of its proper divisors (4578994).

9157982 is a wasteful number, since it uses less digits than its factorization.

9157982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4578993.

The product of its digits is 45360, while the sum is 41.

The square root of 9157982 is about 3026.2157887368. The cubic root of 9157982 is about 209.2184250644.

The spelling of 9157982 in words is "nine million, one hundred fifty-seven thousand, nine hundred eighty-two".