84976765 has 4 divisors (see below), whose sum is σ = 101972124. Its totient is φ = 67981408.

The previous prime is 84976763. The next prime is 84976777. The reversal of 84976765 is 56767948.

It is a happy number.

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 13793796 + 71182969 = 3714^2 + 8437^2 .

It is a cyclic number.

It is not a de Polignac number, because 84976765 - 2¹ = 84976763 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 (84976763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8497672 + ... + 8497681.

It is an arithmetic number, because the mean of its divisors is an integer number (25493031).

Almost surely, 2^84976765 is an apocalyptic number.

It is an amenable number.

84976765 is a deficient number, since it is larger than the sum of its proper divisors (16995359).

84976765 is a wasteful number, since it uses less digits than its factorization.

84976765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16995358.

The product of its digits is 2540160, while the sum is 52.

The square root of 84976765 is about 9218.2842763716. The cubic root of 84976765 is about 439.6429006874.

The spelling of 84976765 in words is "eighty-four million, nine hundred seventy-six thousand, seven hundred sixty-five".