211472307 has 6 divisors (see below), whose sum is σ = 305460012. Its totient is φ = 140981532.

The previous prime is 211472213. The next prime is 211472351. The reversal of 211472307 is 703274112.

It is a happy number.

It is not a de Polignac number, because 211472307 - 2⁷ = 211472179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211472357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11748453 + ... + 11748470.

It is an arithmetic number, because the mean of its divisors is an integer number (50910002).

Almost surely, 2^211472307 is an apocalyptic number.

211472307 is a deficient number, since it is larger than the sum of its proper divisors (93987705).

211472307 is a wasteful number, since it uses less digits than its factorization.

211472307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23496929 (or 23496926 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 211472307 is about 14542.0874361283. The cubic root of 211472307 is about 595.7780532910.

The spelling of 211472307 in words is "two hundred eleven million, four hundred seventy-two thousand, three hundred seven".