85730477 has 4 divisors (see below), whose sum is σ = 97977696. Its totient is φ = 73483260.

The previous prime is 85730423. The next prime is 85730479. The reversal of 85730477 is 77403758.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85730477 - 2²⁰ = 84681901 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 (85730479) 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, 6123599 + ... + 6123612.

It is an arithmetic number, because the mean of its divisors is an integer number (24494424).

Almost surely, 2^85730477 is an apocalyptic number.

It is an amenable number.

85730477 is a deficient number, since it is larger than the sum of its proper divisors (12247219).

85730477 is a wasteful number, since it uses less digits than its factorization.

85730477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12247218.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 85730477 is about 9259.0753858039. The cubic root of 85730477 is about 440.9388990202.

The spelling of 85730477 in words is "eighty-five million, seven hundred thirty thousand, four hundred seventy-seven".