97909238 has 8 divisors (see below), whose sum is σ = 167844432. Its totient is φ = 41961096.

The previous prime is 97909211. The next prime is 97909243. The reversal of 97909238 is 83290979.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 97909192 and 97909201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3496745 + ... + 3496772.

It is an arithmetic number, because the mean of its divisors is an integer number (20980554).

Almost surely, 2^97909238 is an apocalyptic number.

97909238 is a deficient number, since it is larger than the sum of its proper divisors (69935194).

97909238 is a wasteful number, since it uses less digits than its factorization.

97909238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993526.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 97909238 is about 9894.9097014576. The cubic root of 97909238 is about 460.9012544890.

The spelling of 97909238 in words is "ninety-seven million, nine hundred nine thousand, two hundred thirty-eight".