85723497 has 24 divisors (see below), whose sum is σ = 133529760. Its totient is φ = 52816320.

The previous prime is 85723481. The next prime is 85723523. The reversal of 85723497 is 79432758.

It is not a de Polignac number, because 85723497 - 2⁴ = 85723481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85723427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 898 + ... + 13124.

It is an arithmetic number, because the mean of its divisors is an integer number (5563740).

Almost surely, 2^85723497 is an apocalyptic number.

It is an amenable number.

85723497 is a deficient number, since it is larger than the sum of its proper divisors (47806263).

85723497 is a wasteful number, since it uses less digits than its factorization.

85723497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12293 (or 12290 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 85723497 is about 9258.6984506463. The cubic root of 85723497 is about 440.9269319145.

The spelling of 85723497 in words is "eighty-five million, seven hundred twenty-three thousand, four hundred ninety-seven".