84470957 has 2 divisors, whose sum is σ = 84470958. Its totient is φ = 84470956.

The previous prime is 84470951. The next prime is 84470983. The reversal of 84470957 is 75907448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76930441 + 7540516 = 8771^2 + 2746^2 .

It is a cyclic number.

It is not a de Polignac number, because 84470957 - 2¹² = 84466861 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84470951) by changing a digit.

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 as a sum of consecutive naturals, namely, 42235478 + 42235479.

It is an arithmetic number, because the mean of its divisors is an integer number (42235479).

Almost surely, 2^84470957 is an apocalyptic number.

It is an amenable number.

84470957 is a deficient number, since it is larger than the sum of its proper divisors (1).

84470957 is an equidigital number, since it uses as much as digits as its factorization.

84470957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 84470957 is about 9190.8082887198. The cubic root of 84470957 is about 438.7688673526.

The spelling of 84470957 in words is "eighty-four million, four hundred seventy thousand, nine hundred fifty-seven".