87351787 has 2 divisors, whose sum is σ = 87351788. Its totient is φ = 87351786.

The previous prime is 87351731. The next prime is 87351793. The reversal of 87351787 is 78715378.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87351787 - 2⁷ = 87351659 is a prime.

It is not a weakly prime, because it can be changed into another prime (87351587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43675893 + 43675894.

It is an arithmetic number, because the mean of its divisors is an integer number (43675894).

Almost surely, 2^87351787 is an apocalyptic number.

87351787 is a deficient number, since it is larger than the sum of its proper divisors (1).

87351787 is an equidigital number, since it uses as much as digits as its factorization.

87351787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 329280, while the sum is 46.

The square root of 87351787 is about 9346.2177911709. The cubic root of 87351787 is about 443.7011946059.

The spelling of 87351787 in words is "eighty-seven million, three hundred fifty-one thousand, seven hundred eighty-seven".