213697382 has 4 divisors (see below), whose sum is σ = 320546076. Its totient is φ = 106848690.

The previous prime is 213697381. The next prime is 213697387. The reversal of 213697382 is 283796312.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213697381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53424344 + ... + 53424347.

It is an arithmetic number, because the mean of its divisors is an integer number (80136519).

Almost surely, 2^213697382 is an apocalyptic number.

213697382 is a deficient number, since it is larger than the sum of its proper divisors (106848694).

213697382 is a wasteful number, since it uses less digits than its factorization.

213697382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106848693.

The product of its digits is 108864, while the sum is 41.

The square root of 213697382 is about 14618.3919088250. The cubic root of 213697382 is about 597.8603250182.

The spelling of 213697382 in words is "two hundred thirteen million, six hundred ninety-seven thousand, three hundred eighty-two".