70774889 has 2 divisors, whose sum is σ = 70774890. Its totient is φ = 70774888.

The previous prime is 70774883. The next prime is 70774901. The reversal of 70774889 is 98847707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43033600 + 27741289 = 6560^2 + 5267^2 .

It is a cyclic number.

It is not a de Polignac number, because 70774889 - 2⁸ = 70774633 is a prime.

It is not a weakly prime, because it can be changed into another prime (70774883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35387444 + 35387445.

It is an arithmetic number, because the mean of its divisors is an integer number (35387445).

Almost surely, 2^70774889 is an apocalyptic number.

It is an amenable number.

70774889 is a deficient number, since it is larger than the sum of its proper divisors (1).

70774889 is an equidigital number, since it uses as much as digits as its factorization.

70774889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 70774889 is about 8412.7812880165. The cubic root of 70774889 is about 413.6436855020.

The spelling of 70774889 in words is "seventy million, seven hundred seventy-four thousand, eight hundred eighty-nine".