97932409 has 8 divisors (see below), whose sum is σ = 98988480. Its totient is φ = 96882000.

The previous prime is 97932397. The next prime is 97932421. The reversal of 97932409 is 90423979.

It is an interprime number because it is at equal distance from previous prime (97932397) and next prime (97932421).

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

It is a cyclic number.

It is not a de Polignac number, because 97932409 - 2¹⁷ = 97801337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97930409) 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, 39414 + ... + 41824.

It is an arithmetic number, because the mean of its divisors is an integer number (12373560).

Almost surely, 2^97932409 is an apocalyptic number.

It is an amenable number.

97932409 is a deficient number, since it is larger than the sum of its proper divisors (1056071).

97932409 is a wasteful number, since it uses less digits than its factorization.

97932409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 97932409 is about 9896.0804867382. The cubic root of 97932409 is about 460.9376102706.

The spelling of 97932409 in words is "ninety-seven million, nine hundred thirty-two thousand, four hundred nine".