85498791 has 8 divisors (see below), whose sum is σ = 130283904. Its totient is φ = 48856440.

The previous prime is 85498783. The next prime is 85498793. The reversal of 85498791 is 19789458.

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

It is not a de Polignac number, because 85498791 - 2³ = 85498783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85498793) 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, 2035665 + ... + 2035706.

It is an arithmetic number, because the mean of its divisors is an integer number (16285488).

Almost surely, 2^85498791 is an apocalyptic number.

85498791 is a deficient number, since it is larger than the sum of its proper divisors (44785113).

85498791 is a wasteful number, since it uses less digits than its factorization.

85498791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071381.

The product of its digits is 725760, while the sum is 51.

The square root of 85498791 is about 9246.5556289896. Note that the first 3 decimals coincide. The cubic root of 85498791 is about 440.5413292563.

The spelling of 85498791 in words is "eighty-five million, four hundred ninety-eight thousand, seven hundred ninety-one".