97743638 has 24 divisors (see below), whose sum is σ = 155585160. Its totient is φ = 46046880.

The previous prime is 97743637. The next prime is 97743643. The reversal of 97743638 is 83634779.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 97743592 and 97743601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97743637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238778 + ... + 239186.

It is an arithmetic number, because the mean of its divisors is an integer number (6482715).

Almost surely, 2^97743638 is an apocalyptic number.

97743638 is a deficient number, since it is larger than the sum of its proper divisors (57841522).

97743638 is a wasteful number, since it uses less digits than its factorization.

97743638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780 (or 761 counting only the distinct ones).

The product of its digits is 762048, while the sum is 47.

The square root of 97743638 is about 9886.5382212380. The cubic root of 97743638 is about 460.6412575061.

The spelling of 97743638 in words is "ninety-seven million, seven hundred forty-three thousand, six hundred thirty-eight".