97723111 has 2 divisors, whose sum is σ = 97723112. Its totient is φ = 97723110.

The previous prime is 97723103. The next prime is 97723117. The reversal of 97723111 is 11132779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97723111 - 2³ = 97723103 is a prime.

It is the 9886-th Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97723117) by changing a digit.

It is a nontrivial repunit in base 9885.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48861555 + 48861556.

It is an arithmetic number, because the mean of its divisors is an integer number (48861556).

Almost surely, 2^97723111 is an apocalyptic number.

97723111 is a deficient number, since it is larger than the sum of its proper divisors (1).

97723111 is an equidigital number, since it uses as much as digits as its factorization.

97723111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646, while the sum is 31.

The square root of 97723111 is about 9885.5000379343. The cubic root of 97723111 is about 460.6090090472.

The spelling of 97723111 in words is "ninety-seven million, seven hundred twenty-three thousand, one hundred eleven".