85470320 has 40 divisors (see below), whose sum is σ = 214007136. Its totient is φ = 31557888.

The previous prime is 85470313. The next prime is 85470331. The reversal of 85470320 is 2307458.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40052 + ... + 42131.

Almost surely, 2^85470320 is an apocalyptic number.

85470320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85470320 is an abundant number, since it is smaller than the sum of its proper divisors (128536816).

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

85470320 is a wasteful number, since it uses less digits than its factorization.

85470320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82209 (or 82203 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 85470320 is about 9245.0159545563. The cubic root of 85470320 is about 440.4924239072.

Adding to 85470320 its reverse (2307458), we get a palindrome (87777778).

The spelling of 85470320 in words is "eighty-five million, four hundred seventy thousand, three hundred twenty".