97121930 has 16 divisors (see below), whose sum is σ = 174978144. Its totient is φ = 38813520.

The previous prime is 97121891. The next prime is 97121933. The reversal of 97121930 is 3912179.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (97121933) 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, 9149 + ... + 16671.

It is an arithmetic number, because the mean of its divisors is an integer number (10936134).

Almost surely, 2^97121930 is an apocalyptic number.

97121930 is a deficient number, since it is larger than the sum of its proper divisors (77856214).

97121930 is a wasteful number, since it uses less digits than its factorization.

97121930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8821.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 97121930 is about 9855.0459156718. The cubic root of 97121930 is about 459.6625281570.

The spelling of 97121930 in words is "ninety-seven million, one hundred twenty-one thousand, nine hundred thirty".