70423867 has 2 divisors, whose sum is σ = 70423868. Its totient is φ = 70423866.

The previous prime is 70423819. The next prime is 70423879. The reversal of 70423867 is 76832407.

It is a strong prime.

It is an emirp because it is prime and its reverse (76832407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70423867 - 2¹⁹ = 69899579 is a prime.

It is not a weakly prime, because it can be changed into another prime (70423817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35211933 + 35211934.

It is an arithmetic number, because the mean of its divisors is an integer number (35211934).

Almost surely, 2^70423867 is an apocalyptic number.

70423867 is a deficient number, since it is larger than the sum of its proper divisors (1).

70423867 is an equidigital number, since it uses as much as digits as its factorization.

70423867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 70423867 is about 8391.8929330634. The cubic root of 70423867 is about 412.9587027088.

The spelling of 70423867 in words is "seventy million, four hundred twenty-three thousand, eight hundred sixty-seven".