85869407 has 6 divisors (see below), whose sum is σ = 92983032. Its totient is φ = 79263912.

The previous prime is 85869391. The next prime is 85869461. The reversal of 85869407 is 70496858.

It is not a de Polignac number, because 85869407 - 2⁴ = 85869391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85869467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253883 + ... + 254220.

It is an arithmetic number, because the mean of its divisors is an integer number (15497172).

Almost surely, 2^85869407 is an apocalyptic number.

85869407 is a deficient number, since it is larger than the sum of its proper divisors (7113625).

85869407 is a wasteful number, since it uses less digits than its factorization.

85869407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508129 (or 508116 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 85869407 is about 9266.5747177692. The cubic root of 85869407 is about 441.1769574168.

The spelling of 85869407 in words is "eighty-five million, eight hundred sixty-nine thousand, four hundred seven".