87422723 has 2 divisors, whose sum is σ = 87422724. Its totient is φ = 87422722.

The previous prime is 87422717. The next prime is 87422761. The reversal of 87422723 is 32722478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87422723 - 2⁴ = 87422707 is a prime.

It is not a weakly prime, because it can be changed into another prime (87422623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43711361 + 43711362.

It is an arithmetic number, because the mean of its divisors is an integer number (43711362).

Almost surely, 2^87422723 is an apocalyptic number.

87422723 is a deficient number, since it is larger than the sum of its proper divisors (1).

87422723 is an equidigital number, since it uses as much as digits as its factorization.

87422723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 35.

The square root of 87422723 is about 9350.0119251261. The cubic root of 87422723 is about 443.8212679822.

The spelling of 87422723 in words is "eighty-seven million, four hundred twenty-two thousand, seven hundred twenty-three".