97113428 has 6 divisors (see below), whose sum is σ = 169948506. Its totient is φ = 48556712.

The previous prime is 97113391. The next prime is 97113463. The reversal of 97113428 is 82431179.

It can be written as a sum of positive squares in only one way, i.e., 96786244 + 327184 = 9838^2 + 572^2 .

It is a super-3 number, since 3×97113428³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12139175 + ... + 12139182.

It is an arithmetic number, because the mean of its divisors is an integer number (28324751).

Almost surely, 2^97113428 is an apocalyptic number.

It is an amenable number.

97113428 is a deficient number, since it is larger than the sum of its proper divisors (72835078).

97113428 is a wasteful number, since it uses less digits than its factorization.

97113428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24278361 (or 24278359 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 97113428 is about 9854.6145535987. The cubic root of 97113428 is about 459.6491148978.

The spelling of 97113428 in words is "ninety-seven million, one hundred thirteen thousand, four hundred twenty-eight".