84157298 has 4 divisors (see below), whose sum is σ = 126235950. Its totient is φ = 42078648.

The previous prime is 84157291. The next prime is 84157313. The reversal of 84157298 is 89275148.

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., 74528689 + 9628609 = 8633^2 + 3103^2 .

It is not an unprimeable number, because it can be changed into a prime (84157291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21039323 + ... + 21039326.

Almost surely, 2^84157298 is an apocalyptic number.

84157298 is a deficient number, since it is larger than the sum of its proper divisors (42078652).

84157298 is a wasteful number, since it uses less digits than its factorization.

84157298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42078651.

The product of its digits is 161280, while the sum is 44.

The square root of 84157298 is about 9173.7286857635. The cubic root of 84157298 is about 438.2251124192.

The spelling of 84157298 in words is "eighty-four million, one hundred fifty-seven thousand, two hundred ninety-eight".