83994290 has 8 divisors (see below), whose sum is σ = 151189740. Its totient is φ = 33597712.

The previous prime is 83994277. The next prime is 83994293. The reversal of 83994290 is 9249938.

It can be written as a sum of positive squares in 2 ways, for example, as 83850649 + 143641 = 9157^2 + 379^2 .

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 (83994293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4199705 + ... + 4199724.

Almost surely, 2^83994290 is an apocalyptic number.

83994290 is a deficient number, since it is larger than the sum of its proper divisors (67195450).

83994290 is a wasteful number, since it uses less digits than its factorization.

83994290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8399436.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 83994290 is about 9164.8398785794. The cubic root of 83994290 is about 437.9419903297.

The spelling of 83994290 in words is "eighty-three million, nine hundred ninety-four thousand, two hundred ninety".