70873572 has 144 divisors (see below), whose sum is σ = 219269120. Its totient is φ = 17392320.

The previous prime is 70873571. The next prime is 70873577. The reversal of 70873572 is 27537807.

It is a self number, because there is not a number n which added to its sum of digits gives 70873572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70873571) 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 47 ways as a sum of consecutive naturals, for example, 192933 + ... + 193299.

Almost surely, 2^70873572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70873572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109634560).

70873572 is an abundant number, since it is smaller than the sum of its proper divisors (148395548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70873572 is a wasteful number, since it uses less digits than its factorization.

70873572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 70873572 is about 8418.6443089134. The cubic root of 70873572 is about 413.8358470778.

It can be divided in two parts, 708735 and 72, that added together give a palindrome (708807).

The spelling of 70873572 in words is "seventy million, eight hundred seventy-three thousand, five hundred seventy-two".