70087679 has 2 divisors, whose sum is σ = 70087680. Its totient is φ = 70087678.

The previous prime is 70087639. The next prime is 70087711. The reversal of 70087679 is 97678007.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70087679 - 2²⁴ = 53310463 is a prime.

It is a Sophie Germain 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 (70087609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35043839 + 35043840.

It is an arithmetic number, because the mean of its divisors is an integer number (35043840).

Almost surely, 2^70087679 is an apocalyptic number.

70087679 is a deficient number, since it is larger than the sum of its proper divisors (1).

70087679 is an equidigital number, since it uses as much as digits as its factorization.

70087679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 70087679 is about 8371.8384480352. The cubic root of 70087679 is about 412.3005296990.

The spelling of 70087679 in words is "seventy million, eighty-seven thousand, six hundred seventy-nine".