97252638 has 16 divisors (see below), whose sum is σ = 222291840. Its totient is φ = 27786456.

The previous prime is 97252637. The next prime is 97252651. The reversal of 97252638 is 83625279.

It is a super-3 number, since 3×97252638³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 2315539 = 97252638 / (9 + 7 + 2 + 5 + 2 + 6 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 97252638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97252633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157728 + ... + 1157811.

It is an arithmetic number, because the mean of its divisors is an integer number (13893240).

Almost surely, 2^97252638 is an apocalyptic number.

97252638 is an abundant number, since it is smaller than the sum of its proper divisors (125039202).

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

97252638 is a wasteful number, since it uses less digits than its factorization.

97252638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315551.

The product of its digits is 181440, while the sum is 42.

The square root of 97252638 is about 9861.6752126604. The cubic root of 97252638 is about 459.8686423923.

The spelling of 97252638 in words is "ninety-seven million, two hundred fifty-two thousand, six hundred thirty-eight".