84251677 has 4 divisors (see below), whose sum is σ = 89207676. Its totient is φ = 79295680.

The previous prime is 84251623. The next prime is 84251729. The reversal of 84251677 is 77615248.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63266116 + 20985561 = 7954^2 + 4581^2 .

It is a cyclic number.

It is not a de Polignac number, because 84251677 - 2⁷ = 84251549 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 (84251617) 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 3 ways as a sum of consecutive naturals, for example, 2477974 + ... + 2478007.

It is an arithmetic number, because the mean of its divisors is an integer number (22301919).

Almost surely, 2^84251677 is an apocalyptic number.

It is an amenable number.

84251677 is a deficient number, since it is larger than the sum of its proper divisors (4955999).

84251677 is a wasteful number, since it uses less digits than its factorization.

84251677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955998.

The product of its digits is 94080, while the sum is 40.

The square root of 84251677 is about 9178.8712268993. The cubic root of 84251677 is about 438.3888684554.

The spelling of 84251677 in words is "eighty-four million, two hundred fifty-one thousand, six hundred seventy-seven".