213199892 has 6 divisors (see below), whose sum is σ = 373099818. Its totient is φ = 106599944.

The previous prime is 213199841. The next prime is 213199913. The reversal of 213199892 is 298991312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 173080336 + 40119556 = 13156^2 + 6334^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26649983 + ... + 26649990.

It is an arithmetic number, because the mean of its divisors is an integer number (62183303).

Almost surely, 2^213199892 is an apocalyptic number.

It is an amenable number.

213199892 is a deficient number, since it is larger than the sum of its proper divisors (159899926).

213199892 is a wasteful number, since it uses less digits than its factorization.

213199892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53299977 (or 53299975 counting only the distinct ones).

The product of its digits is 69984, while the sum is 44.

The square root of 213199892 is about 14601.3661004716. The cubic root of 213199892 is about 597.3960225924.

It can be divided in two parts, 21 and 3199892, that added together give a palindrome (3199913).

The spelling of 213199892 in words is "two hundred thirteen million, one hundred ninety-nine thousand, eight hundred ninety-two".