1930247 has 8 divisors (see below), whose sum is σ = 2115840. Its totient is φ = 1746360.

The previous prime is 1930237. The next prime is 1930249. The reversal of 1930247 is 7420391.

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

It is not a de Polignac number, because 1930247 - 2¹⁶ = 1864711 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 (1930249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3938 + ... + 4400.

It is an arithmetic number, because the mean of its divisors is an integer number (264480).

2^1930247 is an apocalyptic number.

1930247 is a deficient number, since it is larger than the sum of its proper divisors (185593).

1930247 is a wasteful number, since it uses less digits than its factorization.

1930247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1930247 is about 1389.3332933461. Note that the first 3 decimals coincide. The cubic root of 1930247 is about 124.5100178495.

The spelling of 1930247 in words is "one million, nine hundred thirty thousand, two hundred forty-seven".