8137898 has 4 divisors (see below), whose sum is σ = 12206850. Its totient is φ = 4068948.

The previous prime is 8137897. The next prime is 8137919. The reversal of 8137898 is 8987318.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8987318 = 2 ⋅4493659.

It can be written as a sum of positive squares in only one way, i.e., 5555449 + 2582449 = 2357^2 + 1607^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8137897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2034473 + ... + 2034476.

Almost surely, 2^8137898 is an apocalyptic number.

8137898 is a deficient number, since it is larger than the sum of its proper divisors (4068952).

8137898 is a wasteful number, since it uses less digits than its factorization.

8137898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068951.

The product of its digits is 96768, while the sum is 44.

The square root of 8137898 is about 2852.7001244435. The cubic root of 8137898 is about 201.1426097832.

The spelling of 8137898 in words is "eight million, one hundred thirty-seven thousand, eight hundred ninety-eight".