70873539 has 16 divisors (see below), whose sum is σ = 103469184. Its totient is φ = 42795200.

The previous prime is 70873531. The next prime is 70873547. The reversal of 70873539 is 93537807.

It is an interprime number because it is at equal distance from previous prime (70873531) and next prime (70873547).

It is a cyclic number.

It is not a de Polignac number, because 70873539 - 2³ = 70873531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70873539.

It is not an unprimeable number, because it can be changed into a prime (70873531) 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, 5452 + ... + 13094.

It is an arithmetic number, because the mean of its divisors is an integer number (6466824).

Almost surely, 2^70873539 is an apocalyptic number.

70873539 is a deficient number, since it is larger than the sum of its proper divisors (32595645).

70873539 is a wasteful number, since it uses less digits than its factorization.

70873539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7938.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 70873539 is about 8418.6423489777. The cubic root of 70873539 is about 413.8357828481.

It can be divided in two parts, 708 and 73539, that added together give a palindrome (74247).

The spelling of 70873539 in words is "seventy million, eight hundred seventy-three thousand, five hundred thirty-nine".