97431400 has 96 divisors (see below), whose sum is σ = 251189280. Its totient is φ = 34848000.

The previous prime is 97431379. The next prime is 97431401. The reversal of 97431400 is 413479.

It is not an unprimeable number, because it can be changed into a prime (97431401) 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, 147070 + ... + 147730.

It is an arithmetic number, because the mean of its divisors is an integer number (2616555).

Almost surely, 2^97431400 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 97431400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125594640).

97431400 is an abundant number, since it is smaller than the sum of its proper divisors (153757880).

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

97431400 is a wasteful number, since it uses less digits than its factorization.

97431400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 97431400 is about 9870.7345218074. The cubic root of 97431400 is about 460.1502344824.

Adding to 97431400 its reverse (413479), we get a palindrome (97844879).

The spelling of 97431400 in words is "ninety-seven million, four hundred thirty-one thousand, four hundred".