97213400 has 48 divisors (see below), whose sum is σ = 228396840. Its totient is φ = 38476800.

The previous prime is 97213381. The next prime is 97213421. The reversal of 97213400 is 431279.

It is a self number, because there is not a number n which added to its sum of digits gives 97213400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16895 + ... + 21905.

Almost surely, 2^97213400 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 97213400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114198420).

97213400 is an abundant number, since it is smaller than the sum of its proper divisors (131183440).

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

97213400 is a wasteful number, since it uses less digits than its factorization.

97213400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5124 (or 5115 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 97213400 is about 9859.6855933645. The cubic root of 97213400 is about 459.8067871616.

Adding to 97213400 its reverse (431279), we get a palindrome (97644679).

The spelling of 97213400 in words is "ninety-seven million, two hundred thirteen thousand, four hundred".