8117402 has 4 divisors (see below), whose sum is σ = 12176106. Its totient is φ = 4058700.

The previous prime is 8117401. The next prime is 8117407. The reversal of 8117402 is 2047118.

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., 6046681 + 2070721 = 2459^2 + 1439^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8117401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2029349 + ... + 2029352.

Almost surely, 2^8117402 is an apocalyptic number.

8117402 is a deficient number, since it is larger than the sum of its proper divisors (4058704).

8117402 is a wasteful number, since it uses less digits than its factorization.

8117402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4058703.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 8117402 is about 2849.1054736531. The cubic root of 8117402 is about 200.9736027973.

The spelling of 8117402 in words is "eight million, one hundred seventeen thousand, four hundred two".