220648347 has 16 divisors (see below), whose sum is σ = 334860960. Its totient is φ = 143510400.

The previous prime is 220648301. The next prime is 220648367. The reversal of 220648347 is 743846022.

220648347 is a `hidden beast` number, since 2 + 2 + 0 + 648 + 3 + 4 + 7 = 666.

It is not a de Polignac number, because 220648347 - 2¹¹ = 220646299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220648367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98554 + ... + 100767.

It is an arithmetic number, because the mean of its divisors is an integer number (20928810).

Almost surely, 2^220648347 is an apocalyptic number.

220648347 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

220648347 is a deficient number, since it is larger than the sum of its proper divisors (114212613).

220648347 is a wasteful number, since it uses less digits than its factorization.

220648347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199371 (or 199365 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 220648347 is about 14854.2366683718. The cubic root of 220648347 is about 604.2735145237.

The spelling of 220648347 in words is "two hundred twenty million, six hundred forty-eight thousand, three hundred forty-seven".