97806939 has 8 divisors (see below), whose sum is σ = 130516032. Its totient is φ = 65151240.

The previous prime is 97806913. The next prime is 97806949. The reversal of 97806939 is 93960879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97806939 - 2¹² = 97802843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97806891 and 97806900.

It is not an unprimeable number, because it can be changed into a prime (97806949) 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, 8857 + ... + 16554.

It is an arithmetic number, because the mean of its divisors is an integer number (16314504).

Almost surely, 2^97806939 is an apocalyptic number.

97806939 is a deficient number, since it is larger than the sum of its proper divisors (32709093).

97806939 is a wasteful number, since it uses less digits than its factorization.

97806939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26697.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 97806939 is about 9889.7390764367. The cubic root of 97806939 is about 460.7406766274.

The spelling of 97806939 in words is "ninety-seven million, eight hundred six thousand, nine hundred thirty-nine".