97412728 has 64 divisors (see below), whose sum is σ = 222082560. Its totient is φ = 39152256.

The previous prime is 97412719. The next prime is 97412741. The reversal of 97412728 is 82721479.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 67551 + ... + 68977.

It is an arithmetic number, because the mean of its divisors is an integer number (3470040).

Almost surely, 2^97412728 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 97412728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111041280).

97412728 is an abundant number, since it is smaller than the sum of its proper divisors (124669832).

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

97412728 is a wasteful number, since it uses less digits than its factorization.

97412728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516 (or 1512 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The square root of 97412728 is about 9869.7886502194. The cubic root of 97412728 is about 460.1208378194.

The spelling of 97412728 in words is "ninety-seven million, four hundred twelve thousand, seven hundred twenty-eight".