84628567 has 4 divisors (see below), whose sum is σ = 89606736. Its totient is φ = 79650400.

The previous prime is 84628561. The next prime is 84628637. The reversal of 84628567 is 76582648.

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

It is a cyclic number.

It is not a de Polignac number, because 84628567 - 2³ = 84628559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84628561) 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 3 ways as a sum of consecutive naturals, for example, 2489059 + ... + 2489092.

It is an arithmetic number, because the mean of its divisors is an integer number (22401684).

Almost surely, 2^84628567 is an apocalyptic number.

84628567 is a deficient number, since it is larger than the sum of its proper divisors (4978169).

84628567 is a wasteful number, since it uses less digits than its factorization.

84628567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4978168.

The product of its digits is 645120, while the sum is 46.

The square root of 84628567 is about 9199.3786203200. The cubic root of 84628567 is about 439.0415898663.

The spelling of 84628567 in words is "eighty-four million, six hundred twenty-eight thousand, five hundred sixty-seven".