85374497 has 4 divisors (see below), whose sum is σ = 91941780. Its totient is φ = 78807216.

The previous prime is 85374469. The next prime is 85374539. The reversal of 85374497 is 79447358.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11826721 + 73547776 = 3439^2 + 8576^2 .

It is a cyclic number.

It is not a de Polignac number, because 85374497 - 2⁶ = 85374433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85374437) 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, 3283622 + ... + 3283647.

It is an arithmetic number, because the mean of its divisors is an integer number (22985445).

Almost surely, 2^85374497 is an apocalyptic number.

It is an amenable number.

85374497 is a deficient number, since it is larger than the sum of its proper divisors (6567283).

85374497 is a wasteful number, since it uses less digits than its factorization.

85374497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6567282.

The product of its digits is 846720, while the sum is 47.

The square root of 85374497 is about 9239.8320872189. The cubic root of 85374497 is about 440.3277465106.

The spelling of 85374497 in words is "eighty-five million, three hundred seventy-four thousand, four hundred ninety-seven".