84257465 has 4 divisors (see below), whose sum is σ = 101108964. Its totient is φ = 67405968.

The previous prime is 84257447. The next prime is 84257477. The reversal of 84257465 is 56475248.

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 56715961 + 27541504 = 7531^2 + 5248^2 .

It is a cyclic number.

It is not a de Polignac number, because 84257465 - 2¹⁰ = 84256441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8425742 + ... + 8425751.

It is an arithmetic number, because the mean of its divisors is an integer number (25277241).

Almost surely, 2^84257465 is an apocalyptic number.

It is an amenable number.

84257465 is a deficient number, since it is larger than the sum of its proper divisors (16851499).

84257465 is a wasteful number, since it uses less digits than its factorization.

84257465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16851498.

The product of its digits is 268800, while the sum is 41.

The square root of 84257465 is about 9179.1865107971. The cubic root of 84257465 is about 438.3989071741.

The spelling of 84257465 in words is "eighty-four million, two hundred fifty-seven thousand, four hundred sixty-five".