70287947 has 2 divisors, whose sum is σ = 70287948. Its totient is φ = 70287946.

The previous prime is 70287937. The next prime is 70287953. The reversal of 70287947 is 74978207.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70287947 - 2⁸ = 70287691 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70287898 and 70287907.

It is not a weakly prime, because it can be changed into another prime (70287937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35143973 + 35143974.

It is an arithmetic number, because the mean of its divisors is an integer number (35143974).

Almost surely, 2^70287947 is an apocalyptic number.

70287947 is a deficient number, since it is larger than the sum of its proper divisors (1).

70287947 is an equidigital number, since it uses as much as digits as its factorization.

70287947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 70287947 is about 8383.7907297356. The cubic root of 70287947 is about 412.6928577217.

The spelling of 70287947 in words is "seventy million, two hundred eighty-seven thousand, nine hundred forty-seven".