84700457 has 2 divisors, whose sum is σ = 84700458. Its totient is φ = 84700456.

The previous prime is 84700453. The next prime is 84700481. The reversal of 84700457 is 75400748.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61842496 + 22857961 = 7864^2 + 4781^2 .

It is a cyclic number.

It is not a de Polignac number, because 84700457 - 2² = 84700453 is a prime.

It is not a weakly prime, because it can be changed into another prime (84700453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42350228 + 42350229.

It is an arithmetic number, because the mean of its divisors is an integer number (42350229).

Almost surely, 2^84700457 is an apocalyptic number.

It is an amenable number.

84700457 is a deficient number, since it is larger than the sum of its proper divisors (1).

84700457 is an equidigital number, since it uses as much as digits as its factorization.

84700457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 84700457 is about 9203.2851199993. The cubic root of 84700457 is about 439.1658732219.

The spelling of 84700457 in words is "eighty-four million, seven hundred thousand, four hundred fifty-seven".