87437723 has 2 divisors, whose sum is σ = 87437724. Its totient is φ = 87437722.

The previous prime is 87437717. The next prime is 87437731. The reversal of 87437723 is 32773478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87437723 - 2⁶ = 87437659 is a prime.

It is not a weakly prime, because it can be changed into another prime (87437773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43718861 + 43718862.

It is an arithmetic number, because the mean of its divisors is an integer number (43718862).

Almost surely, 2^87437723 is an apocalyptic number.

87437723 is a deficient number, since it is larger than the sum of its proper divisors (1).

87437723 is an equidigital number, since it uses as much as digits as its factorization.

87437723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 41.

The square root of 87437723 is about 9350.8140287357. The cubic root of 87437723 is about 443.8466501638.

The spelling of 87437723 in words is "eighty-seven million, four hundred thirty-seven thousand, seven hundred twenty-three".