213948656 has 10 divisors (see below), whose sum is σ = 414525552. Its totient is φ = 106974320.

The previous prime is 213948649. The next prime is 213948667. The reversal of 213948656 is 656849312.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 6685880 + ... + 6685911.

Almost surely, 2^213948656 is an apocalyptic number.

It is an amenable number.

213948656 is a deficient number, since it is larger than the sum of its proper divisors (200576896).

213948656 is a wasteful number, since it uses less digits than its factorization.

213948656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13371799 (or 13371793 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 213948656 is about 14626.9838312620. The cubic root of 213948656 is about 598.0945626606.

The spelling of 213948656 in words is "two hundred thirteen million, nine hundred forty-eight thousand, six hundred fifty-six".