85433490 has 24 divisors (see below), whose sum is σ = 222127308. Its totient is φ = 22782240.

The previous prime is 85433479. The next prime is 85433497. The reversal of 85433490 is 9433458.

It can be written as a sum of positive squares in 2 ways, for example, as 85433049 + 441 = 9243^2 + 21^2 .

It is not an unprimeable number, because it can be changed into a prime (85433497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474541 + ... + 474720.

Almost surely, 2^85433490 is an apocalyptic number.

85433490 is an abundant number, since it is smaller than the sum of its proper divisors (136693818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85433490 is a wasteful number, since it uses less digits than its factorization.

85433490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949274 (or 949271 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 85433490 is about 9243.0238558602. The cubic root of 85433490 is about 440.4291439803.

The spelling of 85433490 in words is "eighty-five million, four hundred thirty-three thousand, four hundred ninety".