8170742 has 4 divisors (see below), whose sum is σ = 12256116. Its totient is φ = 4085370.

The previous prime is 8170711. The next prime is 8170777. The reversal of 8170742 is 2470718.

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

It is a super-2 number, since 2×8170742² = 133522049661128, which contains 22 as substring.

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, 2042684 + ... + 2042687.

It is an arithmetic number, because the mean of its divisors is an integer number (3064029).

Almost surely, 2^8170742 is an apocalyptic number.

8170742 is a deficient number, since it is larger than the sum of its proper divisors (4085374).

8170742 is a wasteful number, since it uses less digits than its factorization.

8170742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085373.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 8170742 is about 2858.4509791144. The cubic root of 8170742 is about 201.4128458314.

The spelling of 8170742 in words is "eight million, one hundred seventy thousand, seven hundred forty-two".