84270656 has 14 divisors (see below), whose sum is σ = 167224710. Its totient is φ = 42135296.

The previous prime is 84270653. The next prime is 84270661. The reversal of 84270656 is 65607248.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49224256 + 35046400 = 7016^2 + 5920^2 .

It is not an unprimeable number, because it can be changed into a prime (84270653) 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 as a sum of consecutive naturals, namely, 658301 + ... + 658428.

Almost surely, 2^84270656 is an apocalyptic number.

It is an amenable number.

84270656 is a deficient number, since it is larger than the sum of its proper divisors (82954054).

84270656 is a wasteful number, since it uses less digits than its factorization.

84270656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316741 (or 1316731 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 84270656 is about 9179.9050104018. The cubic root of 84270656 is about 438.4217839532.

The spelling of 84270656 in words is "eighty-four million, two hundred seventy thousand, six hundred fifty-six".