87270787 has 2 divisors, whose sum is σ = 87270788. Its totient is φ = 87270786.

The previous prime is 87270769. The next prime is 87270791. The reversal of 87270787 is 78707278.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87270787 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (87270737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43635393 + 43635394.

It is an arithmetic number, because the mean of its divisors is an integer number (43635394).

Almost surely, 2^87270787 is an apocalyptic number.

87270787 is a deficient number, since it is larger than the sum of its proper divisors (1).

87270787 is an equidigital number, since it uses as much as digits as its factorization.

87270787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 307328, while the sum is 46.

The square root of 87270787 is about 9341.8834824675. The cubic root of 87270787 is about 443.5640063753.

The spelling of 87270787 in words is "eighty-seven million, two hundred seventy thousand, seven hundred eighty-seven".