85791434 has 8 divisors (see below), whose sum is σ = 131825988. Its totient is φ = 41849440.

The previous prime is 85791427. The next prime is 85791439. The reversal of 85791434 is 43419758.

It can be written as a sum of positive squares in 2 ways, for example, as 79263409 + 6528025 = 8903^2 + 2555^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85791391 and 85791400.

It is not an unprimeable number, because it can be changed into a prime (85791439) 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, 523037 + ... + 523200.

Almost surely, 2^85791434 is an apocalyptic number.

85791434 is a deficient number, since it is larger than the sum of its proper divisors (46034554).

85791434 is a wasteful number, since it uses less digits than its factorization.

85791434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046280.

The product of its digits is 120960, while the sum is 41.

The square root of 85791434 is about 9262.3665442477. The cubic root of 85791434 is about 441.0433812902.

The spelling of 85791434 in words is "eighty-five million, seven hundred ninety-one thousand, four hundred thirty-four".