70120837 has 2 divisors, whose sum is σ = 70120838. Its totient is φ = 70120836.

The previous prime is 70120829. The next prime is 70120871. The reversal of 70120837 is 73802107.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50041476 + 20079361 = 7074^2 + 4481^2 .

It is an emirp because it is prime and its reverse (73802107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70120837 - 2³ = 70120829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70120877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35060418 + 35060419.

It is an arithmetic number, because the mean of its divisors is an integer number (35060419).

Almost surely, 2^70120837 is an apocalyptic number.

It is an amenable number.

70120837 is a deficient number, since it is larger than the sum of its proper divisors (1).

70120837 is an equidigital number, since it uses as much as digits as its factorization.

70120837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 70120837 is about 8373.8185435320. The cubic root of 70120837 is about 412.3655382989.

The spelling of 70120837 in words is "seventy million, one hundred twenty thousand, eight hundred thirty-seven".