70407089 has 2 divisors, whose sum is σ = 70407090. Its totient is φ = 70407088.

The previous prime is 70407067. The next prime is 70407097. The reversal of 70407089 is 98070407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56776225 + 13630864 = 7535^2 + 3692^2 .

It is an emirp because it is prime and its reverse (98070407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70407089 - 2¹² = 70402993 is a prime.

It is not a weakly prime, because it can be changed into another prime (70407019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35203544 + 35203545.

It is an arithmetic number, because the mean of its divisors is an integer number (35203545).

Almost surely, 2^70407089 is an apocalyptic number.

It is an amenable number.

70407089 is a deficient number, since it is larger than the sum of its proper divisors (1).

70407089 is an equidigital number, since it uses as much as digits as its factorization.

70407089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 70407089 is about 8390.8932182456. The cubic root of 70407089 is about 412.9259052510.

The spelling of 70407089 in words is "seventy million, four hundred seven thousand, eighty-nine".