84020572 has 6 divisors (see below), whose sum is σ = 147036008. Its totient is φ = 42010284.

The previous prime is 84020567. The next prime is 84020597. The reversal of 84020572 is 27502048.

It is a self number, because there is not a number n which added to its sum of digits gives 84020572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10502568 + ... + 10502575.

Almost surely, 2^84020572 is an apocalyptic number.

It is an amenable number.

84020572 is a deficient number, since it is larger than the sum of its proper divisors (63015436).

84020572 is a wasteful number, since it uses less digits than its factorization.

84020572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21005147 (or 21005145 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 84020572 is about 9166.2736158158. The cubic root of 84020572 is about 437.9876632403.

It can be divided in two parts, 840 and 20572, that added together give a palindrome (21412).

The spelling of 84020572 in words is "eighty-four million, twenty thousand, five hundred seventy-two".