87073073 has 2 divisors, whose sum is σ = 87073074. Its totient is φ = 87073072.

The previous prime is 87073043. The next prime is 87073081. The reversal of 87073073 is 37037078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76877824 + 10195249 = 8768^2 + 3193^2 .

It is a cyclic number.

It is not a de Polignac number, because 87073073 - 2¹⁰ = 87072049 is a prime.

It is not a weakly prime, because it can be changed into another prime (87073003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43536536 + 43536537.

It is an arithmetic number, because the mean of its divisors is an integer number (43536537).

Almost surely, 2^87073073 is an apocalyptic number.

It is an amenable number.

87073073 is a deficient number, since it is larger than the sum of its proper divisors (1).

87073073 is an equidigital number, since it uses as much as digits as its factorization.

87073073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 87073073 is about 9331.2953548797. The cubic root of 87073073 is about 443.2287849022.

The spelling of 87073073 in words is "eighty-seven million, seventy-three thousand, seventy-three".