87200723 has 2 divisors, whose sum is σ = 87200724. Its totient is φ = 87200722.

The previous prime is 87200717. The next prime is 87200779. The reversal of 87200723 is 32700278.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87200723 is a prime.

It is not a weakly prime, because it can be changed into another prime (87203723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43600361 + 43600362.

It is an arithmetic number, because the mean of its divisors is an integer number (43600362).

Almost surely, 2^87200723 is an apocalyptic number.

87200723 is a deficient number, since it is larger than the sum of its proper divisors (1).

87200723 is an equidigital number, since it uses as much as digits as its factorization.

87200723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 87200723 is about 9338.1327362594. The cubic root of 87200723 is about 443.4452717635.

The spelling of 87200723 in words is "eighty-seven million, two hundred thousand, seven hundred twenty-three".