84432554 has 4 divisors (see below), whose sum is σ = 126648834. Its totient is φ = 42216276.

The previous prime is 84432553. The next prime is 84432577. The reversal of 84432554 is 45523448.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49350625 + 35081929 = 7025^2 + 5923^2 .

It is not an unprimeable number, because it can be changed into a prime (84432553) 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 as a sum of consecutive naturals, namely, 21108137 + ... + 21108140.

Almost surely, 2^84432554 is an apocalyptic number.

84432554 is a deficient number, since it is larger than the sum of its proper divisors (42216280).

84432554 is a wasteful number, since it uses less digits than its factorization.

84432554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42216279.

The product of its digits is 76800, while the sum is 35.

The square root of 84432554 is about 9188.7188443221. The cubic root of 84432554 is about 438.7023648308.

The spelling of 84432554 in words is "eighty-four million, four hundred thirty-two thousand, five hundred fifty-four".