83433290 has 16 divisors (see below), whose sum is σ = 155359080. Its totient is φ = 32222400.

The previous prime is 83433283. The next prime is 83433293. The reversal of 83433290 is 9233438.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 78092569 + 5340721 = 8837^2 + 2311^2 .

It is a super-2 number, since 2×83433290² = 13922227760448200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83433293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143561 + ... + 144140.

Almost surely, 2^83433290 is an apocalyptic number.

83433290 is a deficient number, since it is larger than the sum of its proper divisors (71925790).

83433290 is a wasteful number, since it uses less digits than its factorization.

83433290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287737.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 83433290 is about 9134.1825031034. The cubic root of 83433290 is about 436.9648029714.

The spelling of 83433290 in words is "eighty-three million, four hundred thirty-three thousand, two hundred ninety".