84564751 has 8 divisors (see below), whose sum is σ = 85606560. Its totient is φ = 83527392.

The previous prime is 84564743. The next prime is 84564761. The reversal of 84564751 is 15746548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84564751 - 2³ = 84564743 is a prime.

It is a super-2 number, since 2×84564751² = 14302394223384002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84564761) 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 7 ways as a sum of consecutive naturals, for example, 51621 + ... + 53233.

It is an arithmetic number, because the mean of its divisors is an integer number (10700820).

Almost surely, 2^84564751 is an apocalyptic number.

84564751 is a deficient number, since it is larger than the sum of its proper divisors (1041809).

84564751 is a wasteful number, since it uses less digits than its factorization.

84564751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225.

The product of its digits is 134400, while the sum is 40.

The square root of 84564751 is about 9195.9094710638. The cubic root of 84564751 is about 438.9312058493.

The spelling of 84564751 in words is "eighty-four million, five hundred sixty-four thousand, seven hundred fifty-one".