1928201 has 4 divisors (see below), whose sum is σ = 2103504. Its totient is φ = 1752900.

The previous prime is 1928183. The next prime is 1928203. The reversal of 1928201 is 1028291.

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: 1028291 = 11 ⋅93481.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1928201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1928203) 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, 87635 + ... + 87656.

It is an arithmetic number, because the mean of its divisors is an integer number (525876).

2^1928201 is an apocalyptic number.

1928201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1928201 is a deficient number, since it is larger than the sum of its proper divisors (175303).

1928201 is a wasteful number, since it uses less digits than its factorization.

1928201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175302.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1928201 is about 1388.5967737252. The cubic root of 1928201 is about 124.4660100865.

The spelling of 1928201 in words is "one million, nine hundred twenty-eight thousand, two hundred one".