84473261 has 2 divisors, whose sum is σ = 84473262. Its totient is φ = 84473260.

The previous prime is 84473237. The next prime is 84473267. The reversal of 84473261 is 16237448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84456100 + 17161 = 9190^2 + 131^2 .

It is a cyclic number.

It is not a de Polignac number, because 84473261 - 2⁶ = 84473197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84473267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42236630 + 42236631.

It is an arithmetic number, because the mean of its divisors is an integer number (42236631).

Almost surely, 2^84473261 is an apocalyptic number.

It is an amenable number.

84473261 is a deficient number, since it is larger than the sum of its proper divisors (1).

84473261 is an equidigital number, since it uses as much as digits as its factorization.

84473261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 35.

The square root of 84473261 is about 9190.9336304861. The cubic root of 84473261 is about 438.7728565512.

The spelling of 84473261 in words is "eighty-four million, four hundred seventy-three thousand, two hundred sixty-one".