85973830 has 16 divisors (see below), whose sum is σ = 154896624. Its totient is φ = 34357600.

The previous prime is 85973821. The next prime is 85973837. The reversal of 85973830 is 3837958.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85973837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9480 + ... + 16180.

It is an arithmetic number, because the mean of its divisors is an integer number (9681039).

Almost surely, 2^85973830 is an apocalyptic number.

85973830 is a deficient number, since it is larger than the sum of its proper divisors (68922794).

85973830 is a wasteful number, since it uses less digits than its factorization.

85973830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7991.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 85973830 is about 9272.2073963000. The cubic root of 85973830 is about 441.3557186361.

The spelling of 85973830 in words is "eighty-five million, nine hundred seventy-three thousand, eight hundred thirty".