84047553 has 6 divisors (see below), whose sum is σ = 121402034. Its totient is φ = 56031696.

The previous prime is 84047549. The next prime is 84047563. The reversal of 84047553 is 35574048.

It can be written as a sum of positive squares in only one way, i.e., 80407089 + 3640464 = 8967^2 + 1908^2 .

It is not a de Polignac number, because 84047553 - 2² = 84047549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84047503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4669300 + ... + 4669317.

Almost surely, 2^84047553 is an apocalyptic number.

It is an amenable number.

84047553 is a deficient number, since it is larger than the sum of its proper divisors (37354481).

84047553 is a wasteful number, since it uses less digits than its factorization.

84047553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9338623 (or 9338620 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 84047553 is about 9167.7452516963. The cubic root of 84047553 is about 438.0345409678.

The spelling of 84047553 in words is "eighty-four million, forty-seven thousand, five hundred fifty-three".