70736089 has 2 divisors, whose sum is σ = 70736090. Its totient is φ = 70736088.

The previous prime is 70736087. The next prime is 70736123. The reversal of 70736089 is 98063707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49942489 + 20793600 = 7067^2 + 4560^2 .

It is a cyclic number.

It is not a de Polignac number, because 70736089 - 2¹ = 70736087 is a prime.

Together with 70736087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70736087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35368044 + 35368045.

It is an arithmetic number, because the mean of its divisors is an integer number (35368045).

Almost surely, 2^70736089 is an apocalyptic number.

It is an amenable number.

70736089 is a deficient number, since it is larger than the sum of its proper divisors (1).

70736089 is an equidigital number, since it uses as much as digits as its factorization.

70736089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 70736089 is about 8410.4749568618. The cubic root of 70736089 is about 413.5680828461.

The spelling of 70736089 in words is "seventy million, seven hundred thirty-six thousand, eighty-nine".