85202399 has 4 divisors (see below), whose sum is σ = 87015264. Its totient is φ = 83389536.

The previous prime is 85202371. The next prime is 85202443. The reversal of 85202399 is 99320258.

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

It is a cyclic number.

It is not a de Polignac number, because 85202399 - 2²⁴ = 68425183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85207399) 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, 906362 + ... + 906455.

It is an arithmetic number, because the mean of its divisors is an integer number (21753816).

Almost surely, 2^85202399 is an apocalyptic number.

85202399 is a deficient number, since it is larger than the sum of its proper divisors (1812865).

85202399 is a wasteful number, since it uses less digits than its factorization.

85202399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812864.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 85202399 is about 9230.5145577048. The cubic root of 85202399 is about 440.0316764385.

The spelling of 85202399 in words is "eighty-five million, two hundred two thousand, three hundred ninety-nine".