211197672 has 64 divisors (see below), whose sum is σ = 670473600. Its totient is φ = 60341760.

The previous prime is 211197643. The next prime is 211197697. The reversal of 211197672 is 276791112.

It is a happy number.

211197672 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68329 + ... + 71352.

It is an arithmetic number, because the mean of its divisors is an integer number (10476150).

Almost surely, 2^211197672 is an apocalyptic number.

It is an amenable number.

211197672 is an abundant number, since it is smaller than the sum of its proper divisors (459275928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211197672 is a wasteful number, since it uses less digits than its factorization.

211197672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139703 (or 139693 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The square root of 211197672 is about 14532.6416043333. The cubic root of 211197672 is about 595.5200330805.

The spelling of 211197672 in words is "two hundred eleven million, one hundred ninety-seven thousand, six hundred seventy-two".