70077641 has 2 divisors, whose sum is σ = 70077642. Its totient is φ = 70077640.

The previous prime is 70077571. The next prime is 70077653. The reversal of 70077641 is 14677007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66765241 + 3312400 = 8171^2 + 1820^2 .

It is an emirp because it is prime and its reverse (14677007) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70077641 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70077598 and 70077607.

It is not a weakly prime, because it can be changed into another prime (70077671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35038820 + 35038821.

It is an arithmetic number, because the mean of its divisors is an integer number (35038821).

Almost surely, 2^70077641 is an apocalyptic number.

It is an amenable number.

70077641 is a deficient number, since it is larger than the sum of its proper divisors (1).

70077641 is an equidigital number, since it uses as much as digits as its factorization.

70077641 is an evil number, because the sum of its binary digits is even.

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

The square root of 70077641 is about 8371.2389166718. The cubic root of 70077641 is about 412.2808454484.

The spelling of 70077641 in words is "seventy million, seventy-seven thousand, six hundred forty-one".