70227977 has 2 divisors, whose sum is σ = 70227978. Its totient is φ = 70227976.

The previous prime is 70227973. The next prime is 70227979. The reversal of 70227977 is 77972207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52722121 + 17505856 = 7261^2 + 4184^2 .

It is a cyclic number.

It is not a de Polignac number, because 70227977 - 2² = 70227973 is a prime.

Together with 70227979, 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 (70227973) 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, 35113988 + 35113989.

It is an arithmetic number, because the mean of its divisors is an integer number (35113989).

Almost surely, 2^70227977 is an apocalyptic number.

It is an amenable number.

70227977 is a deficient number, since it is larger than the sum of its proper divisors (1).

70227977 is an equidigital number, since it uses as much as digits as its factorization.

70227977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86436, while the sum is 41.

The square root of 70227977 is about 8380.2134221033. The cubic root of 70227977 is about 412.5754538434.

The spelling of 70227977 in words is "seventy million, two hundred twenty-seven thousand, nine hundred seventy-seven".