870642467 has 2 divisors, whose sum is σ = 870642468. Its totient is φ = 870642466.

The previous prime is 870642439. The next prime is 870642469. The reversal of 870642467 is 764246078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 870642467 - 2¹⁸ = 870380323 is a prime.

Together with 870642469, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (870642469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435321233 + 435321234.

It is an arithmetic number, because the mean of its divisors is an integer number (435321234).

Almost surely, 2^870642467 is an apocalyptic number.

870642467 is a deficient number, since it is larger than the sum of its proper divisors (1).

870642467 is an equidigital number, since it uses as much as digits as its factorization.

870642467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 44.

The square root of 870642467 is about 29506.6512332389. The cubic root of 870642467 is about 954.8752034875.

The spelling of 870642467 in words is "eight hundred seventy million, six hundred forty-two thousand, four hundred sixty-seven".