213976975 has 6 divisors (see below), whose sum is σ = 265331480. Its totient is φ = 171181560.

The previous prime is 213976969. The next prime is 213976979. The reversal of 213976975 is 579679312.

It is not a de Polignac number, because 213976975 - 2³ = 213976967 is a prime.

It is a super-2 number, since 2×213976975² = 91572291660301250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213976979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4279515 + ... + 4279564.

Almost surely, 2^213976975 is an apocalyptic number.

213976975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

213976975 is a deficient number, since it is larger than the sum of its proper divisors (51354505).

213976975 is an equidigital number, since it uses as much as digits as its factorization.

213976975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8559089 (or 8559084 counting only the distinct ones).

The product of its digits is 714420, while the sum is 49.

The square root of 213976975 is about 14627.9518388597. The cubic root of 213976975 is about 598.1209501328.

The spelling of 213976975 in words is "two hundred thirteen million, nine hundred seventy-six thousand, nine hundred seventy-five".