87623441 has 2 divisors, whose sum is σ = 87623442. Its totient is φ = 87623440.

The previous prime is 87623401. The next prime is 87623449. The reversal of 87623441 is 14432678.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62473216 + 25150225 = 7904^2 + 5015^2 .

It is a cyclic number.

It is not a de Polignac number, because 87623441 - 2⁶ = 87623377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87623449) 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, 43811720 + 43811721.

It is an arithmetic number, because the mean of its divisors is an integer number (43811721).

Almost surely, 2^87623441 is an apocalyptic number.

It is an amenable number.

87623441 is a deficient number, since it is larger than the sum of its proper divisors (1).

87623441 is an equidigital number, since it uses as much as digits as its factorization.

87623441 is an odious number, because the sum of its binary digits is odd.

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

The square root of 87623441 is about 9360.7393404581. The cubic root of 87623441 is about 444.1606718368.

The spelling of 87623441 in words is "eighty-seven million, six hundred twenty-three thousand, four hundred forty-one".