1928087 has 8 divisors (see below), whose sum is σ = 2245536. Its totient is φ = 1621152.

The previous prime is 1928071. The next prime is 1928093. The reversal of 1928087 is 7808291.

It is a happy number.

1928087 is nontrivially palindromic in base 8.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1928087 - 2⁴ = 1928071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2228 + ... + 2969.

It is an arithmetic number, because the mean of its divisors is an integer number (280692).

2^1928087 is an apocalyptic number.

1928087 is a deficient number, since it is larger than the sum of its proper divisors (317449).

1928087 is an equidigital number, since it uses as much as digits as its factorization.

1928087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1928087 is about 1388.5557244850. Note that the first 3 decimals coincide. The cubic root of 1928087 is about 124.4635571256.

The spelling of 1928087 in words is "one million, nine hundred twenty-eight thousand, eighty-seven".