85917746 has 4 divisors (see below), whose sum is σ = 128876622. Its totient is φ = 42958872.

The previous prime is 85917743. The next prime is 85917781. The reversal of 85917746 is 64771958.

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

It can be written as a sum of positive squares in only one way, i.e., 49857721 + 36060025 = 7061^2 + 6005^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85917746.

It is not an unprimeable number, because it can be changed into a prime (85917743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21479435 + ... + 21479438.

Almost surely, 2^85917746 is an apocalyptic number.

85917746 is a deficient number, since it is larger than the sum of its proper divisors (42958876).

85917746 is a wasteful number, since it uses less digits than its factorization.

85917746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42958875.

The product of its digits is 423360, while the sum is 47.

The square root of 85917746 is about 9269.1825961085. The cubic root of 85917746 is about 441.2597267181.

The spelling of 85917746 in words is "eighty-five million, nine hundred seventeen thousand, seven hundred forty-six".