85670497 has 16 divisors (see below), whose sum is σ = 99997632. Its totient is φ = 72529920.

The previous prime is 85670489. The next prime is 85670509. The reversal of 85670497 is 79407658.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 85670497 - 2³ = 85670489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85670477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15778 + ... + 20500.

It is an arithmetic number, because the mean of its divisors is an integer number (6249852).

Almost surely, 2^85670497 is an apocalyptic number.

It is an amenable number.

85670497 is a deficient number, since it is larger than the sum of its proper divisors (14327135).

85670497 is a wasteful number, since it uses less digits than its factorization.

85670497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4848.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 85670497 is about 9255.8358347585. The cubic root of 85670497 is about 440.8360430062.

The spelling of 85670497 in words is "eighty-five million, six hundred seventy thousand, four hundred ninety-seven".