70198441 has 2 divisors, whose sum is σ = 70198442. Its totient is φ = 70198440.

The previous prime is 70198439. The next prime is 70198451. The reversal of 70198441 is 14489107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67322025 + 2876416 = 8205^2 + 1696^2 .

It is an emirp because it is prime and its reverse (14489107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70198441 - 2¹ = 70198439 is a prime.

It is a super-2 number, since 2×70198441² = 9855642237660962, which contains 22 as substring.

Together with 70198439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 70198397 and 70198406.

It is not a weakly prime, because it can be changed into another prime (70198451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35099220 + 35099221.

It is an arithmetic number, because the mean of its divisors is an integer number (35099221).

Almost surely, 2^70198441 is an apocalyptic number.

It is an amenable number.

70198441 is a deficient number, since it is larger than the sum of its proper divisors (1).

70198441 is an equidigital number, since it uses as much as digits as its factorization.

70198441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 70198441 is about 8378.4509904874. The cubic root of 70198441 is about 412.5176063498.

The spelling of 70198441 in words is "seventy million, one hundred ninety-eight thousand, four hundred forty-one".