85730880 has 56 divisors (see below), whose sum is σ = 272198592. Its totient is φ = 22861312.

The previous prime is 85730849. The next prime is 85730893. The reversal of 85730880 is 8803758.

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, 43692 + ... + 45611.

Almost surely, 2^85730880 is an apocalyptic number.

85730880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85730880 is an abundant number, since it is smaller than the sum of its proper divisors (186467712).

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

85730880 is a wasteful number, since it uses less digits than its factorization.

85730880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89323 (or 89313 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 85730880 is about 9259.0971482105. The cubic root of 85730880 is about 440.9395899378.

The spelling of 85730880 in words is "eighty-five million, seven hundred thirty thousand, eight hundred eighty".