97121803 has 4 divisors (see below), whose sum is σ = 97196320. Its totient is φ = 97047288.

The previous prime is 97121797. The next prime is 97121807. The reversal of 97121803 is 30812179.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97121803 - 2⁵ = 97121771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97121807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35268 + ... + 37921.

It is an arithmetic number, because the mean of its divisors is an integer number (24299080).

Almost surely, 2^97121803 is an apocalyptic number.

97121803 is a deficient number, since it is larger than the sum of its proper divisors (74517).

97121803 is a wasteful number, since it uses less digits than its factorization.

97121803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74516.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 97121803 is about 9855.0394722700. The cubic root of 97121803 is about 459.6623278000.

The spelling of 97121803 in words is "ninety-seven million, one hundred twenty-one thousand, eight hundred three".