84812457 has 8 divisors (see below), whose sum is σ = 113129440. Its totient is φ = 56518560.

The previous prime is 84812417. The next prime is 84812459. The reversal of 84812457 is 75421848.

It is a happy number.

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

It is not a de Polignac number, because 84812457 - 2¹⁴ = 84796073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84812459) 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 7 ways as a sum of consecutive naturals, for example, 6582 + ... + 14592.

It is an arithmetic number, because the mean of its divisors is an integer number (14141180).

Almost surely, 2^84812457 is an apocalyptic number.

It is an amenable number.

84812457 is a deficient number, since it is larger than the sum of its proper divisors (28316983).

84812457 is a wasteful number, since it uses less digits than its factorization.

84812457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11543.

The product of its digits is 71680, while the sum is 39.

The square root of 84812457 is about 9209.3678936179. The cubic root of 84812457 is about 439.3593586549.

The spelling of 84812457 in words is "eighty-four million, eight hundred twelve thousand, four hundred fifty-seven".