9212342987 has 2 divisors, whose sum is σ = 9212342988. Its totient is φ = 9212342986.

The previous prime is 9212342977. The next prime is 9212343103. The reversal of 9212342987 is 7892432129.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9212342987 - 2²² = 9208148683 is a prime.

It is not a weakly prime, because it can be changed into another prime (9212342957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4606171493 + 4606171494.

It is an arithmetic number, because the mean of its divisors is an integer number (4606171494).

Almost surely, 2^9212342987 is an apocalyptic number.

9212342987 is a deficient number, since it is larger than the sum of its proper divisors (1).

9212342987 is an equidigital number, since it uses as much as digits as its factorization.

9212342987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 9212342987 is about 95980.9511674061. The cubic root of 9212342987 is about 2096.3157613938.

The spelling of 9212342987 in words is "nine billion, two hundred twelve million, three hundred forty-two thousand, nine hundred eighty-seven".