213878846 has 4 divisors (see below), whose sum is σ = 320818272. Its totient is φ = 106939422.

The previous prime is 213878809. The next prime is 213878849. The reversal of 213878846 is 648878312.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 213878846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213878849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53469710 + ... + 53469713.

It is an arithmetic number, because the mean of its divisors is an integer number (80204568).

Almost surely, 2^213878846 is an apocalyptic number.

213878846 is a deficient number, since it is larger than the sum of its proper divisors (106939426).

213878846 is a wasteful number, since it uses less digits than its factorization.

213878846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106939425.

The product of its digits is 516096, while the sum is 47.

The square root of 213878846 is about 14624.5972936009. The cubic root of 213878846 is about 598.0295041800.

The spelling of 213878846 in words is "two hundred thirteen million, eight hundred seventy-eight thousand, eight hundred forty-six".