43700085 has 48 divisors (see below), whose sum is σ = 89002368. Its totient is φ = 19555200.

The previous prime is 43700077. The next prime is 43700087. The reversal of 43700085 is 58000734.

It is not a de Polignac number, because 43700085 - 2³ = 43700077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43700087) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3040 + ... + 9830.

It is an arithmetic number, because the mean of its divisors is an integer number (1854216).

Almost surely, 2^43700085 is an apocalyptic number.

43700085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43700085 is an abundant number, since it is smaller than the sum of its proper divisors (45302283).

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

43700085 is a wasteful number, since it uses less digits than its factorization.

43700085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6826 (or 6823 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 43700085 is about 6610.6039814831. The cubic root of 43700085 is about 352.2308795445.

The spelling of 43700085 in words is "forty-three million, seven hundred thousand, eighty-five".