97841921 has 8 divisors (see below), whose sum is σ = 103148544. Its totient is φ = 92669760.

The previous prime is 97841837. The next prime is 97841923. The reversal of 97841921 is 12914879.

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 97841921 - 2¹⁴ = 97825537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97841923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32120 + ... + 35033.

It is an arithmetic number, because the mean of its divisors is an integer number (12893568).

Almost surely, 2^97841921 is an apocalyptic number.

It is an amenable number.

97841921 is a deficient number, since it is larger than the sum of its proper divisors (5306623).

97841921 is a wasteful number, since it uses less digits than its factorization.

97841921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67231.

The product of its digits is 36288, while the sum is 41.

The square root of 97841921 is about 9891.5075190792. The cubic root of 97841921 is about 460.7956001647.

The spelling of 97841921 in words is "ninety-seven million, eight hundred forty-one thousand, nine hundred twenty-one".