87998467 has 2 divisors, whose sum is σ = 87998468. Its totient is φ = 87998466.

The previous prime is 87998459. The next prime is 87998489. The reversal of 87998467 is 76489978.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87998467 - 2³ = 87998459 is a prime.

It is not a weakly prime, because it can be changed into another prime (87998767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43999233 + 43999234.

It is an arithmetic number, because the mean of its divisors is an integer number (43999234).

Almost surely, 2^87998467 is an apocalyptic number.

87998467 is a deficient number, since it is larger than the sum of its proper divisors (1).

87998467 is an equidigital number, since it uses as much as digits as its factorization.

87998467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 58.

The square root of 87998467 is about 9380.7498101165. The cubic root of 87998467 is about 444.7934352493.

The spelling of 87998467 in words is "eighty-seven million, nine hundred ninety-eight thousand, four hundred sixty-seven".