1928057 has 4 divisors (see below), whose sum is σ = 1946880. Its totient is φ = 1909236.

The previous prime is 1928041. The next prime is 1928071. The reversal of 1928057 is 7508291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7508291 = 7 ⋅1072613.

It is a cyclic number.

It is not a de Polignac number, because 1928057 - 2⁴ = 1928041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1928257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9257 + ... + 9462.

It is an arithmetic number, because the mean of its divisors is an integer number (486720).

2^1928057 is an apocalyptic number.

It is an amenable number.

1928057 is a deficient number, since it is larger than the sum of its proper divisors (18823).

1928057 is a wasteful number, since it uses less digits than its factorization.

1928057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18822.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1928057 is about 1388.5449218516. The cubic root of 1928057 is about 124.4629115935.

The spelling of 1928057 in words is "one million, nine hundred twenty-eight thousand, fifty-seven".