97748240 has 20 divisors (see below), whose sum is σ = 227264844. Its totient is φ = 39099264.

The previous prime is 97748227. The next prime is 97748251. The reversal of 97748240 is 4284779.

It can be written as a sum of positive squares in 2 ways, for example, as 14500864 + 83247376 = 3808^2 + 9124^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610847 + ... + 611006.

Almost surely, 2^97748240 is an apocalyptic number.

It is an amenable number.

97748240 is an abundant number, since it is smaller than the sum of its proper divisors (129516604).

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

97748240 is a wasteful number, since it uses less digits than its factorization.

97748240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221866 (or 1221860 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 97748240 is about 9886.7709592162. The cubic root of 97748240 is about 460.6484867500.

The spelling of 97748240 in words is "ninety-seven million, seven hundred forty-eight thousand, two hundred forty".