84655957 has 2 divisors, whose sum is σ = 84655958. Its totient is φ = 84655956.

The previous prime is 84655931. The next prime is 84655969. The reversal of 84655957 is 75955648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84474481 + 181476 = 9191^2 + 426^2 .

It is a cyclic number.

It is not a de Polignac number, because 84655957 - 2¹⁹ = 84131669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84655957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84655357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42327978 + 42327979.

It is an arithmetic number, because the mean of its divisors is an integer number (42327979).

Almost surely, 2^84655957 is an apocalyptic number.

It is an amenable number.

84655957 is a deficient number, since it is larger than the sum of its proper divisors (1).

84655957 is an equidigital number, since it uses as much as digits as its factorization.

84655957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512000, while the sum is 49.

The square root of 84655957 is about 9200.8671873905. The cubic root of 84655957 is about 439.0889499658.

The spelling of 84655957 in words is "eighty-four million, six hundred fifty-five thousand, nine hundred fifty-seven".