85909450 has 48 divisors (see below), whose sum is σ = 183515040. Its totient is φ = 29592000.

The previous prime is 85909441. The next prime is 85909451. The reversal of 85909450 is 5490958.

It is not an unprimeable number, because it can be changed into a prime (85909451) 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 23 ways as a sum of consecutive naturals, for example, 6340 + ... + 14560.

It is an arithmetic number, because the mean of its divisors is an integer number (3823230).

Almost surely, 2^85909450 is an apocalyptic number.

85909450 is an abundant number, since it is smaller than the sum of its proper divisors (97605590).

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

85909450 is a wasteful number, since it uses less digits than its factorization.

85909450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8263 (or 8258 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 85909450 is about 9268.7350809051. The cubic root of 85909450 is about 441.2455239537.

The spelling of 85909450 in words is "eighty-five million, nine hundred nine thousand, four hundred fifty".