1928497 has 6 divisors (see below), whose sum is σ = 2048918. Its totient is φ = 1814784.

The previous prime is 1928489. The next prime is 1928501. The reversal of 1928497 is 7948291.

It can be written as a sum of positive squares in 3 ways, for example, as 279841 + 1648656 = 529^2 + 1284^2 .

It is not a de Polignac number, because 1928497 - 2³ = 1928489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1928447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3048 + ... + 3625.

2^1928497 is an apocalyptic number.

1928497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1928497 is a deficient number, since it is larger than the sum of its proper divisors (120421).

1928497 is an equidigital number, since it uses as much as digits as its factorization.

1928497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6707 (or 6690 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 1928497 is about 1388.7033520518. The cubic root of 1928497 is about 124.4723787265.

The spelling of 1928497 in words is "one million, nine hundred twenty-eight thousand, four hundred ninety-seven".