82189298 has 4 divisors (see below), whose sum is σ = 123283950. Its totient is φ = 41094648.

The previous prime is 82189291. The next prime is 82189319. The reversal of 82189298 is 89298128.

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., 81775849 + 413449 = 9043^2 + 643^2 .

It is not an unprimeable number, because it can be changed into a prime (82189291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20547323 + ... + 20547326.

Almost surely, 2^82189298 is an apocalyptic number.

82189298 is a deficient number, since it is larger than the sum of its proper divisors (41094652).

82189298 is a wasteful number, since it uses less digits than its factorization.

82189298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41094651.

The product of its digits is 165888, while the sum is 47.

The square root of 82189298 is about 9065.8313463245. The cubic root of 82189298 is about 434.7822012701.

The spelling of 82189298 in words is "eighty-two million, one hundred eighty-nine thousand, two hundred ninety-eight".