85947605 has 8 divisors (see below), whose sum is σ = 103404600. Its totient is φ = 68579776.

The previous prime is 85947599. The next prime is 85947607. The reversal of 85947605 is 50674958.

It can be written as a sum of positive squares in 4 ways, for example, as 2353156 + 83594449 = 1534^2 + 9143^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85947605 - 2⁶ = 85947541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85947607) 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, 20150 + ... + 24039.

It is an arithmetic number, because the mean of its divisors is an integer number (12925575).

Almost surely, 2^85947605 is an apocalyptic number.

It is an amenable number.

85947605 is a deficient number, since it is larger than the sum of its proper divisors (17456995).

85947605 is a wasteful number, since it uses less digits than its factorization.

85947605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44583.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 85947605 is about 9270.7931160176. The cubic root of 85947605 is about 441.3108378051.

The spelling of 85947605 in words is "eighty-five million, nine hundred forty-seven thousand, six hundred five".