85807047 has 16 divisors (see below), whose sum is σ = 116363520. Its totient is φ = 56233152.

The previous prime is 85807031. The next prime is 85807049. The reversal of 85807047 is 74070858.

It is not a de Polignac number, because 85807047 - 2⁴ = 85807031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85806996 and 85807014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85807049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101854 + ... + 102692.

It is an arithmetic number, because the mean of its divisors is an integer number (7272720).

Almost surely, 2^85807047 is an apocalyptic number.

85807047 is a deficient number, since it is larger than the sum of its proper divisors (30556473).

85807047 is a wasteful number, since it uses less digits than its factorization.

85807047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 85807047 is about 9263.2093250666. The cubic root of 85807047 is about 441.0701345153.

The spelling of 85807047 in words is "eighty-five million, eight hundred seven thousand, forty-seven".