85802739 has 16 divisors (see below), whose sum is σ = 125466624. Its totient is φ = 51725600.

The previous prime is 85802737. The next prime is 85802753. The reversal of 85802739 is 93720858.

It is a cyclic number.

It is not a de Polignac number, because 85802739 - 2¹ = 85802737 is a prime.

It is a super-2 number, since 2×85802739² = 14724220039804242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85802739.

It is not an unprimeable number, because it can be changed into a prime (85802737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504 + ... + 13109.

It is an arithmetic number, because the mean of its divisors is an integer number (7841664).

Almost surely, 2^85802739 is an apocalyptic number.

85802739 is a deficient number, since it is larger than the sum of its proper divisors (39663885).

85802739 is a wasteful number, since it uses less digits than its factorization.

85802739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13818.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 85802739 is about 9262.9767893480. The cubic root of 85802739 is about 441.0627529851.

The spelling of 85802739 in words is "eighty-five million, eight hundred two thousand, seven hundred thirty-nine".