87738967 has 2 divisors, whose sum is σ = 87738968. Its totient is φ = 87738966.

The previous prime is 87738947. The next prime is 87738971. The reversal of 87738967 is 76983778.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87738967 - 2¹⁹ = 87214679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87738907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43869483 + 43869484.

It is an arithmetic number, because the mean of its divisors is an integer number (43869484).

Almost surely, 2^87738967 is an apocalyptic number.

87738967 is a deficient number, since it is larger than the sum of its proper divisors (1).

87738967 is an equidigital number, since it uses as much as digits as its factorization.

87738967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3556224, while the sum is 55.

The square root of 87738967 is about 9366.9080811119. The cubic root of 87738967 is about 444.3557854240.

The spelling of 87738967 in words is "eighty-seven million, seven hundred thirty-eight thousand, nine hundred sixty-seven".