97017728 has 16 divisors (see below), whose sum is σ = 193277760. Its totient is φ = 48508800.

The previous prime is 97017721. The next prime is 97017797. The reversal of 97017728 is 82771079.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97017721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378848 + ... + 379103.

It is an arithmetic number, because the mean of its divisors is an integer number (12079860).

Almost surely, 2^97017728 is an apocalyptic number.

It is an amenable number.

97017728 is a deficient number, since it is larger than the sum of its proper divisors (96260032).

97017728 is an equidigital number, since it uses as much as digits as its factorization.

97017728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757965 (or 757953 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 97017728 is about 9849.7577635189. The cubic root of 97017728 is about 459.4980788756.

The spelling of 97017728 in words is "ninety-seven million, seventeen thousand, seven hundred twenty-eight".