70980641 has 2 divisors, whose sum is σ = 70980642. Its totient is φ = 70980640.

The previous prime is 70980629. The next prime is 70980643. The reversal of 70980641 is 14608907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70980625 + 16 = 8425^2 + 4^2 .

It is an emirp because it is prime and its reverse (14608907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70980641 - 2⁶ = 70980577 is a prime.

Together with 70980643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70980643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35490320 + 35490321.

It is an arithmetic number, because the mean of its divisors is an integer number (35490321).

Almost surely, 2^70980641 is an apocalyptic number.

It is an amenable number.

70980641 is a deficient number, since it is larger than the sum of its proper divisors (1).

70980641 is an equidigital number, since it uses as much as digits as its factorization.

70980641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 70980641 is about 8425.0009495548. Note that the first 3 decimals coincide. The cubic root of 70980641 is about 414.0441367368.

The spelling of 70980641 in words is "seventy million, nine hundred eighty thousand, six hundred forty-one".