84472901 has 2 divisors, whose sum is σ = 84472902. Its totient is φ = 84472900.

The previous prime is 84472897. The next prime is 84472931. The reversal of 84472901 is 10927448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80532676 + 3940225 = 8974^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 84472901 - 2² = 84472897 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 (84472931) 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, 42236450 + 42236451.

It is an arithmetic number, because the mean of its divisors is an integer number (42236451).

Almost surely, 2^84472901 is an apocalyptic number.

It is an amenable number.

84472901 is a deficient number, since it is larger than the sum of its proper divisors (1).

84472901 is an equidigital number, since it uses as much as digits as its factorization.

84472901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 84472901 is about 9190.9140459478. The cubic root of 84472901 is about 438.7722332437.

The spelling of 84472901 in words is "eighty-four million, four hundred seventy-two thousand, nine hundred one".