1928473 has 2 divisors, whose sum is σ = 1928474. Its totient is φ = 1928472.

The previous prime is 1928467. The next prime is 1928489. The reversal of 1928473 is 3748291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1338649 + 589824 = 1157^2 + 768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1928473 is a prime.

It is a super-2 number, since 2×1928473² = 7438016223458, which contains 22 as substring.

1928473 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1928873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964236 + 964237.

It is an arithmetic number, because the mean of its divisors is an integer number (964237).

2^1928473 is an apocalyptic number.

It is an amenable number.

1928473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1928473 is an equidigital number, since it uses as much as digits as its factorization.

1928473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 1928473 is about 1388.6947108706. The cubic root of 1928473 is about 124.4718623745.

It can be divided in two parts, 1928 and 473, that added together give a 4-th power (2401 = 7⁴).

The spelling of 1928473 in words is "one million, nine hundred twenty-eight thousand, four hundred seventy-three".