1928773097 has 16 divisors (see below), whose sum is σ = 2112095232. Its totient is φ = 1753436160.

The previous prime is 1928773061. The next prime is 1928773109. The reversal of 1928773097 is 7903778291.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1928773097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1928773027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300908 + ... + 307250.

It is an arithmetic number, because the mean of its divisors is an integer number (132005952).

Almost surely, 2^1928773097 is an apocalyptic number.

1928773097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1928773097 is a deficient number, since it is larger than the sum of its proper divisors (183322135).

1928773097 is a wasteful number, since it uses less digits than its factorization.

1928773097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6968.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The square root of 1928773097 is about 43917.7993187273. The cubic root of 1928773097 is about 1244.7831855257.

The spelling of 1928773097 in words is "one billion, nine hundred twenty-eight million, seven hundred seventy-three thousand, ninety-seven".