85696789 has 4 divisors (see below), whose sum is σ = 85759020. Its totient is φ = 85634560.

The previous prime is 85696771. The next prime is 85696799. The reversal of 85696789 is 98769658.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17766225 + 67930564 = 4215^2 + 8242^2 .

It is a cyclic number.

It is not a de Polignac number, because 85696789 - 2¹³ = 85688597 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85696739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29002 + ... + 31819.

It is an arithmetic number, because the mean of its divisors is an integer number (21439755).

Almost surely, 2^85696789 is an apocalyptic number.

It is an amenable number.

85696789 is a deficient number, since it is larger than the sum of its proper divisors (62231).

85696789 is a wasteful number, since it uses less digits than its factorization.

85696789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62230.

The product of its digits is 6531840, while the sum is 58.

The square root of 85696789 is about 9257.2560189292. The cubic root of 85696789 is about 440.8811354482.

The spelling of 85696789 in words is "eighty-five million, six hundred ninety-six thousand, seven hundred eighty-nine".