97430256 has 320 divisors, whose sum is σ = 364262400. Its totient is φ = 24192000.

The previous prime is 97430251. The next prime is 97430257. The reversal of 97430256 is 65203479.

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 97430256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97430251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 964606 + ... + 964706.

It is an arithmetic number, because the mean of its divisors is an integer number (1138320).

Almost surely, 2^97430256 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 97430256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182131200).

97430256 is an abundant number, since it is smaller than the sum of its proper divisors (266832144).

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

97430256 is a wasteful number, since it uses less digits than its factorization.

97430256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 97430256 is about 9870.6765725557. The cubic root of 97430256 is about 460.1484335096.

The spelling of 97430256 in words is "ninety-seven million, four hundred thirty thousand, two hundred fifty-six".