213197088 has 96 divisors (see below), whose sum is σ = 607521600. Its totient is φ = 65074176.

The previous prime is 213197077. The next prime is 213197099. The reversal of 213197088 is 880791312.

It is an interprime number because it is at equal distance from previous prime (213197077) and next prime (213197099).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172858 + ... + 174086.

It is an arithmetic number, because the mean of its divisors is an integer number (6328350).

Almost surely, 2^213197088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213197088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303760800).

213197088 is an abundant number, since it is smaller than the sum of its proper divisors (394324512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213197088 is a wasteful number, since it uses less digits than its factorization.

213197088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 213197088 is about 14601.2700817429. The cubic root of 213197088 is about 597.3934036014.

The spelling of 213197088 in words is "two hundred thirteen million, one hundred ninety-seven thousand, eighty-eight".