220734087 has 32 divisors (see below), whose sum is σ = 341978112. Its totient is φ = 124045824.

The previous prime is 220734079. The next prime is 220734091. The reversal of 220734087 is 780437022.

It is not a de Polignac number, because 220734087 - 2³ = 220734079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220734067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 396013 + ... + 396569.

It is an arithmetic number, because the mean of its divisors is an integer number (10686816).

Almost surely, 2^220734087 is an apocalyptic number.

220734087 is a deficient number, since it is larger than the sum of its proper divisors (121244025).

220734087 is a wasteful number, since it uses less digits than its factorization.

220734087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 220734087 is about 14857.1224333651. The cubic root of 220734087 is about 604.3517743467.

The spelling of 220734087 in words is "two hundred twenty million, seven hundred thirty-four thousand, eighty-seven".