213928475 has 6 divisors (see below), whose sum is σ = 265271340. Its totient is φ = 171142760.

The previous prime is 213928439. The next prime is 213928501. The reversal of 213928475 is 574829312.

It is not a de Polignac number, because 213928475 - 2¹⁶ = 213862939 is a prime.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4278545 + ... + 4278594.

It is an arithmetic number, because the mean of its divisors is an integer number (44211890).

Almost surely, 2^213928475 is an apocalyptic number.

213928475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

213928475 is a deficient number, since it is larger than the sum of its proper divisors (51342865).

213928475 is an equidigital number, since it uses as much as digits as its factorization.

213928475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8557149 (or 8557144 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 213928475 is about 14626.2939598519. The cubic root of 213928475 is about 598.0757567064.

The spelling of 213928475 in words is "two hundred thirteen million, nine hundred twenty-eight thousand, four hundred seventy-five".