70984369 has 2 divisors, whose sum is σ = 70984370. Its totient is φ = 70984368.

The previous prime is 70984363. The next prime is 70984387. The reversal of 70984369 is 96348907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56430144 + 14554225 = 7512^2 + 3815^2 .

It is an emirp because it is prime and its reverse (96348907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70984369 - 2¹³ = 70976177 is a prime.

It is a super-2 number, since 2×70984369² = 10077561284656322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70984363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35492184 + 35492185.

It is an arithmetic number, because the mean of its divisors is an integer number (35492185).

Almost surely, 2^70984369 is an apocalyptic number.

It is an amenable number.

70984369 is a deficient number, since it is larger than the sum of its proper divisors (1).

70984369 is an equidigital number, since it uses as much as digits as its factorization.

70984369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 70984369 is about 8425.2221929157. Note that the first 3 decimals coincide. The cubic root of 70984369 is about 414.0513853307.

It can be divided in two parts, 709 and 84369, that added together give a triangular number (85078 = T₄₁₂).

The spelling of 70984369 in words is "seventy million, nine hundred eighty-four thousand, three hundred sixty-nine".