8157794 has 4 divisors (see below), whose sum is σ = 12236694. Its totient is φ = 4078896.

The previous prime is 8157769. The next prime is 8157803. The reversal of 8157794 is 4977518.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4566769 + 3591025 = 2137^2 + 1895^2 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2039447 + ... + 2039450.

Almost surely, 2^8157794 is an apocalyptic number.

8157794 is a deficient number, since it is larger than the sum of its proper divisors (4078900).

8157794 is a wasteful number, since it uses less digits than its factorization.

8157794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4078899.

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

The square root of 8157794 is about 2856.1852180837. The cubic root of 8157794 is about 201.3063980408.

It can be divided in two parts, 81 and 57794, that added together give a palindrome (57875).

The spelling of 8157794 in words is "eight million, one hundred fifty-seven thousand, seven hundred ninety-four".