97982405 has 8 divisors (see below), whose sum is σ = 118505472. Its totient is φ = 77768208.

The previous prime is 97982393. The next prime is 97982429. The reversal of 97982405 is 50428979.

It is a happy number.

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 97982405 - 2¹⁰ = 97981381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76517 + ... + 77786.

It is an arithmetic number, because the mean of its divisors is an integer number (14813184).

Almost surely, 2^97982405 is an apocalyptic number.

It is an amenable number.

97982405 is a deficient number, since it is larger than the sum of its proper divisors (20523067).

97982405 is a wasteful number, since it uses less digits than its factorization.

97982405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154435.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 97982405 is about 9898.6062150184. The cubic root of 97982405 is about 461.0160355045.

The spelling of 97982405 in words is "ninety-seven million, nine hundred eighty-two thousand, four hundred five".