213302997 has 16 divisors (see below), whose sum is σ = 316270080. Its totient is φ = 142082496.

The previous prime is 213302993. The next prime is 213303001. The reversal of 213302997 is 799203312.

It is an interprime number because it is at equal distance from previous prime (213302993) and next prime (213303001).

It is not a de Polignac number, because 213302997 - 2² = 213302993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213302993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39388 + ... + 44474.

It is an arithmetic number, because the mean of its divisors is an integer number (19766880).

Almost surely, 2^213302997 is an apocalyptic number.

213302997 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

213302997 is a deficient number, since it is larger than the sum of its proper divisors (102967083).

213302997 is a wasteful number, since it uses less digits than its factorization.

213302997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6649 (or 6643 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 213302997 is about 14604.8963365030. The cubic root of 213302997 is about 597.4923087425.

The spelling of 213302997 in words is "two hundred thirteen million, three hundred two thousand, nine hundred ninety-seven".