211477480 has 16 divisors (see below), whose sum is σ = 475824420. Its totient is φ = 84590976.

The previous prime is 211477471. The next prime is 211477489. The reversal of 211477480 is 84774112.

It is an interprime number because it is at equal distance from previous prime (211477471) and next prime (211477489).

It can be written as a sum of positive squares in 2 ways, for example, as 209844196 + 1633284 = 14486^2 + 1278^2 .

It is not an unprimeable number, because it can be changed into a prime (211477489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2643429 + ... + 2643508.

Almost surely, 2^211477480 is an apocalyptic number.

211477480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211477480 is an abundant number, since it is smaller than the sum of its proper divisors (264346940).

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

211477480 is a wasteful number, since it uses less digits than its factorization.

211477480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5286948 (or 5286944 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 211477480 is about 14542.2652980889. The cubic root of 211477480 is about 595.7829111922.

The spelling of 211477480 in words is "two hundred eleven million, four hundred seventy-seven thousand, four hundred eighty".