85790319 has 4 divisors (see below), whose sum is σ = 114387096. Its totient is φ = 57193544.

The previous prime is 85790317. The next prime is 85790321. The reversal of 85790319 is 91309758.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (85790317) and next prime (85790321).

It is a cyclic number.

It is not a de Polignac number, because 85790319 - 2¹ = 85790317 is a prime.

It is a super-2 number, since 2×85790319² = 14719957668243522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85790311) 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, 14298384 + ... + 14298389.

It is an arithmetic number, because the mean of its divisors is an integer number (28596774).

Almost surely, 2^85790319 is an apocalyptic number.

85790319 is a deficient number, since it is larger than the sum of its proper divisors (28596777).

85790319 is a wasteful number, since it uses less digits than its factorization.

85790319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28596776.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 85790319 is about 9262.3063542511. The cubic root of 85790319 is about 441.0414705886.

The spelling of 85790319 in words is "eighty-five million, seven hundred ninety thousand, three hundred nineteen".