213649798 has 8 divisors (see below), whose sum is σ = 320631480. Its totient is φ = 106772640.

The previous prime is 213649763. The next prime is 213649817. The reversal of 213649798 is 897946312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20803 + ... + 29326.

It is an arithmetic number, because the mean of its divisors is an integer number (40078935).

Almost surely, 2^213649798 is an apocalyptic number.

213649798 is a deficient number, since it is larger than the sum of its proper divisors (106981682).

213649798 is a wasteful number, since it uses less digits than its factorization.

213649798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52262.

The product of its digits is 653184, while the sum is 49.

The square root of 213649798 is about 14616.7642794156. The cubic root of 213649798 is about 597.8159465342.

The spelling of 213649798 in words is "two hundred thirteen million, six hundred forty-nine thousand, seven hundred ninety-eight".