97213356 has 72 divisors (see below), whose sum is σ = 256860240. Its totient is φ = 30969216.

The previous prime is 97213351. The next prime is 97213381. The reversal of 97213356 is 65331279.

97213356 is a `hidden beast` number, since 97 + 213 + 356 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 97213356.

It is not an unprimeable number, because it can be changed into a prime (97213351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77970 + ... + 79206.

Almost surely, 2^97213356 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 97213356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128430120).

97213356 is an abundant number, since it is smaller than the sum of its proper divisors (159646884).

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

97213356 is a wasteful number, since it uses less digits than its factorization.

97213356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343 (or 1338 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 97213356 is about 9859.6833620558. The cubic root of 97213356 is about 459.8067177901.

The spelling of 97213356 in words is "ninety-seven million, two hundred thirteen thousand, three hundred fifty-six".