18929097 has 24 divisors (see below), whose sum is σ = 30259008. Its totient is φ = 11306400.

The previous prime is 18929081. The next prime is 18929101. The reversal of 18929097 is 79092981.

It is not a de Polignac number, because 18929097 - 2⁴ = 18929081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18929017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5683 + ... + 8375.

It is an arithmetic number, because the mean of its divisors is an integer number (1260792).

Almost surely, 2^18929097 is an apocalyptic number.

It is an amenable number.

18929097 is a deficient number, since it is larger than the sum of its proper divisors (11329911).

18929097 is a wasteful number, since it uses less digits than its factorization.

18929097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781 (or 2778 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 18929097 is about 4350.7582097837. The cubic root of 18929097 is about 266.5078253695.

The spelling of 18929097 in words is "eighteen million, nine hundred twenty-nine thousand, ninety-seven".