220967247 has 8 divisors (see below), whose sum is σ = 294910720. Its totient is φ = 147167640.

The previous prime is 220967237. The next prime is 220967251. The reversal of 220967247 is 742769022.

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

It is not a de Polignac number, because 220967247 - 2⁴ = 220967231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220967237) 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, 32329 + ... + 38562.

It is an arithmetic number, because the mean of its divisors is an integer number (36863840).

Almost surely, 2^220967247 is an apocalyptic number.

220967247 is a deficient number, since it is larger than the sum of its proper divisors (73943473).

220967247 is a wasteful number, since it uses less digits than its factorization.

220967247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71933.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 220967247 is about 14864.9671038990. The cubic root of 220967247 is about 604.5644904347.

The spelling of 220967247 in words is "two hundred twenty million, nine hundred sixty-seven thousand, two hundred forty-seven".