70347437 has 2 divisors, whose sum is σ = 70347438. Its totient is φ = 70347436.

The previous prime is 70347419. The next prime is 70347449. The reversal of 70347437 is 73474307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70241161 + 106276 = 8381^2 + 326^2 .

It is an emirp because it is prime and its reverse (73474307) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70347437 - 2⁸ = 70347181 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70347397 and 70347406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70347337) 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, 35173718 + 35173719.

It is an arithmetic number, because the mean of its divisors is an integer number (35173719).

Almost surely, 2^70347437 is an apocalyptic number.

It is an amenable number.

70347437 is a deficient number, since it is larger than the sum of its proper divisors (1).

70347437 is an equidigital number, since it uses as much as digits as its factorization.

70347437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49392, while the sum is 35.

The square root of 70347437 is about 8387.3378970923. The cubic root of 70347437 is about 412.8092559375.

The spelling of 70347437 in words is "seventy million, three hundred forty-seven thousand, four hundred thirty-seven".