85391351 has 4 divisors (see below), whose sum is σ = 85584552. Its totient is φ = 85198152.

The previous prime is 85391333. The next prime is 85391431. The reversal of 85391351 is 15319358.

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

It is a cyclic number.

It is not a de Polignac number, because 85391351 - 2¹⁴ = 85374967 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 (85391311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95936 + ... + 96821.

It is an arithmetic number, because the mean of its divisors is an integer number (21396138).

Almost surely, 2^85391351 is an apocalyptic number.

85391351 is a deficient number, since it is larger than the sum of its proper divisors (193201).

85391351 is a wasteful number, since it uses less digits than its factorization.

85391351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193200.

The product of its digits is 16200, while the sum is 35.

The square root of 85391351 is about 9240.7440717726. The cubic root of 85391351 is about 440.3567200167.

The spelling of 85391351 in words is "eighty-five million, three hundred ninety-one thousand, three hundred fifty-one".