97853638 has 32 divisors (see below), whose sum is σ = 159489792. Its totient is φ = 44906400.

The previous prime is 97853611. The next prime is 97853647. The reversal of 97853638 is 83635879.

It is a junction number, because it is equal to n+sod(n) for n = 97853591 and 97853600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120253 + ... + 121063.

It is an arithmetic number, because the mean of its divisors is an integer number (4984056).

Almost surely, 2^97853638 is an apocalyptic number.

97853638 is a deficient number, since it is larger than the sum of its proper divisors (61636154).

97853638 is a wasteful number, since it uses less digits than its factorization.

97853638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940.

The product of its digits is 1088640, while the sum is 49.

The square root of 97853638 is about 9892.0997770949. The cubic root of 97853638 is about 460.8139935298.

The spelling of 97853638 in words is "ninety-seven million, eight hundred fifty-three thousand, six hundred thirty-eight".