216480877 has 8 divisors (see below), whose sum is σ = 221831456. Its totient is φ = 211144752.

The previous prime is 216480833. The next prime is 216480881. The reversal of 216480877 is 778084612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216480877 - 2⁷ = 216480749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216480827) 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 7 ways as a sum of consecutive naturals, for example, 30643 + ... + 37039.

It is an arithmetic number, because the mean of its divisors is an integer number (27728932).

Almost surely, 2^216480877 is an apocalyptic number.

It is an amenable number.

216480877 is a deficient number, since it is larger than the sum of its proper divisors (5350579).

216480877 is an equidigital number, since it uses as much as digits as its factorization.

216480877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227.

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 216480877 is about 14713.2891292192. The cubic root of 216480877 is about 600.4449264673. Note that the first 3 decimals are identical.

The spelling of 216480877 in words is "two hundred sixteen million, four hundred eighty thousand, eight hundred seventy-seven".