84256465 has 4 divisors (see below), whose sum is σ = 101107764. Its totient is φ = 67405168.

The previous prime is 84256463. The next prime is 84256483. The reversal of 84256465 is 56465248.

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 22429696 + 61826769 = 4736^2 + 7863^2 .

It is a cyclic number.

It is not a de Polignac number, because 84256465 - 2¹ = 84256463 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84256463) 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, 8425642 + ... + 8425651.

It is an arithmetic number, because the mean of its divisors is an integer number (25276941).

Almost surely, 2^84256465 is an apocalyptic number.

It is an amenable number.

84256465 is a deficient number, since it is larger than the sum of its proper divisors (16851299).

84256465 is a wasteful number, since it uses less digits than its factorization.

84256465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16851298.

The product of its digits is 230400, while the sum is 40.

The square root of 84256465 is about 9179.1320395776. The cubic root of 84256465 is about 438.3971728050.

The spelling of 84256465 in words is "eighty-four million, two hundred fifty-six thousand, four hundred sixty-five".