70730087 has 2 divisors, whose sum is σ = 70730088. Its totient is φ = 70730086.

The previous prime is 70730071. The next prime is 70730089. The reversal of 70730087 is 78003707.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70730087 - 2⁴ = 70730071 is a prime.

Together with 70730089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70730089) 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, 35365043 + 35365044.

It is an arithmetic number, because the mean of its divisors is an integer number (35365044).

Almost surely, 2^70730087 is an apocalyptic number.

70730087 is a deficient number, since it is larger than the sum of its proper divisors (1).

70730087 is an equidigital number, since it uses as much as digits as its factorization.

70730087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 70730087 is about 8410.1181323451. The cubic root of 70730087 is about 413.5563853478.

The spelling of 70730087 in words is "seventy million, seven hundred thirty thousand, eighty-seven".