70086637 has 2 divisors, whose sum is σ = 70086638. Its totient is φ = 70086636.

The previous prime is 70086619. The next prime is 70086641. The reversal of 70086637 is 73668007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70073641 + 12996 = 8371^2 + 114^2 .

It is a cyclic number.

It is not a de Polignac number, because 70086637 - 2¹¹ = 70084589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70086596 and 70086605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70086677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35043318 + 35043319.

It is an arithmetic number, because the mean of its divisors is an integer number (35043319).

Almost surely, 2^70086637 is an apocalyptic number.

It is an amenable number.

70086637 is a deficient number, since it is larger than the sum of its proper divisors (1).

70086637 is an equidigital number, since it uses as much as digits as its factorization.

70086637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 70086637 is about 8371.7762153560. The cubic root of 70086637 is about 412.2984864522.

The spelling of 70086637 in words is "seventy million, eighty-six thousand, six hundred thirty-seven".