85309804 has 6 divisors (see below), whose sum is σ = 149292164. Its totient is φ = 42654900.

The previous prime is 85309787. The next prime is 85309813. The reversal of 85309804 is 40890358.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10663722 + ... + 10663729.

Almost surely, 2^85309804 is an apocalyptic number.

It is an amenable number.

85309804 is a deficient number, since it is larger than the sum of its proper divisors (63982360).

85309804 is a wasteful number, since it uses less digits than its factorization.

85309804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21327455 (or 21327453 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 85309804 is about 9236.3306567056. The cubic root of 85309804 is about 440.2164981397.

The spelling of 85309804 in words is "eighty-five million, three hundred nine thousand, eight hundred four".