216425877 has 8 divisors (see below), whose sum is σ = 288802080. Its totient is φ = 144166800.

The previous prime is 216425873. The next prime is 216425897. The reversal of 216425877 is 778524612.

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

It is not a de Polignac number, because 216425877 - 2² = 216425873 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216425873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24874 + ... + 32427.

It is an arithmetic number, because the mean of its divisors is an integer number (36100260).

Almost surely, 2^216425877 is an apocalyptic number.

It is an amenable number.

216425877 is a deficient number, since it is larger than the sum of its proper divisors (72376203).

216425877 is a wasteful number, since it uses less digits than its factorization.

216425877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58563.

The product of its digits is 188160, while the sum is 42.

The square root of 216425877 is about 14711.4199518605. The cubic root of 216425877 is about 600.3940716781.

The spelling of 216425877 in words is "two hundred sixteen million, four hundred twenty-five thousand, eight hundred seventy-seven".