70404647 has 2 divisors, whose sum is σ = 70404648. Its totient is φ = 70404646.

The previous prime is 70404643. The next prime is 70404703. The reversal of 70404647 is 74640407.

It is a weak prime.

It is an emirp because it is prime and its reverse (74640407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70404647 - 2² = 70404643 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70404643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35202323 + 35202324.

It is an arithmetic number, because the mean of its divisors is an integer number (35202324).

Almost surely, 2^70404647 is an apocalyptic number.

70404647 is a deficient number, since it is larger than the sum of its proper divisors (1).

70404647 is an equidigital number, since it uses as much as digits as its factorization.

70404647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 70404647 is about 8390.7477020823. The cubic root of 70404647 is about 412.9211312207.

The spelling of 70404647 in words is "seventy million, four hundred four thousand, six hundred forty-seven".