84657674 has 4 divisors (see below), whose sum is σ = 126986514. Its totient is φ = 42328836.

The previous prime is 84657659. The next prime is 84657689. The reversal of 84657674 is 47675648.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (84657659) and next prime (84657689).

It can be written as a sum of positive squares in only one way, i.e., 62520649 + 22137025 = 7907^2 + 4705^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 21164417 + ... + 21164420.

Almost surely, 2^84657674 is an apocalyptic number.

84657674 is a deficient number, since it is larger than the sum of its proper divisors (42328840).

84657674 is a wasteful number, since it uses less digits than its factorization.

84657674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42328839.

The product of its digits is 1128960, while the sum is 47.

The square root of 84657674 is about 9200.9604933398. The cubic root of 84657674 is about 439.0919184934.

The spelling of 84657674 in words is "eighty-four million, six hundred fifty-seven thousand, six hundred seventy-four".