97830644 has 24 divisors (see below), whose sum is σ = 173274528. Its totient is φ = 48327840.

The previous prime is 97830643. The next prime is 97830647. The reversal of 97830644 is 44603879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97830643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147674 + ... + 148334.

It is an arithmetic number, because the mean of its divisors is an integer number (7219772).

Almost surely, 2^97830644 is an apocalyptic number.

It is an amenable number.

97830644 is a deficient number, since it is larger than the sum of its proper divisors (75443884).

97830644 is a wasteful number, since it uses less digits than its factorization.

97830644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 97830644 is about 9890.9374682080. The cubic root of 97830644 is about 460.7778961254. Note that the first 3 decimals are identical.

The spelling of 97830644 in words is "ninety-seven million, eight hundred thirty thousand, six hundred forty-four".