70989203 has 2 divisors, whose sum is σ = 70989204. Its totient is φ = 70989202.

The previous prime is 70989181. The next prime is 70989209. The reversal of 70989203 is 30298907.

It is a strong prime.

It is an emirp because it is prime and its reverse (30298907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70989203 - 2⁸ = 70988947 is a prime.

It is not a weakly prime, because it can be changed into another prime (70989209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35494601 + 35494602.

It is an arithmetic number, because the mean of its divisors is an integer number (35494602).

Almost surely, 2^70989203 is an apocalyptic number.

70989203 is a deficient number, since it is larger than the sum of its proper divisors (1).

70989203 is an equidigital number, since it uses as much as digits as its factorization.

70989203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 70989203 is about 8425.5090647391. The cubic root of 70989203 is about 414.0607840147.

The spelling of 70989203 in words is "seventy million, nine hundred eighty-nine thousand, two hundred three".