83491274 has 8 divisors (see below), whose sum is σ = 125430660. Its totient is φ = 41681056.

The previous prime is 83491273. The next prime is 83491279. The reversal of 83491274 is 47219438.

It can be written as a sum of positive squares in 2 ways, for example, as 72369049 + 11122225 = 8507^2 + 3335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (83491273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30659 + ... + 33270.

Almost surely, 2^83491274 is an apocalyptic number.

83491274 is a deficient number, since it is larger than the sum of its proper divisors (41939386).

83491274 is a wasteful number, since it uses less digits than its factorization.

83491274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64584.

The product of its digits is 48384, while the sum is 38.

The square root of 83491274 is about 9137.3559632970. The cubic root of 83491274 is about 437.0660059800.

The spelling of 83491274 in words is "eighty-three million, four hundred ninety-one thousand, two hundred seventy-four".