1906473 has 8 divisors (see below), whose sum is σ = 2556736. Its totient is φ = 1263600.

The previous prime is 1906453. The next prime is 1906477. The reversal of 1906473 is 3746091.

It is a happy number.

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

It is not a de Polignac number, because 1906473 - 2¹⁴ = 1890089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1906473.

It is not an unprimeable number, because it can be changed into a prime (1906477) 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, 1213 + ... + 2298.

It is an arithmetic number, because the mean of its divisors is an integer number (319592).

2^1906473 is an apocalyptic number.

It is an amenable number.

1906473 is a deficient number, since it is larger than the sum of its proper divisors (650263).

1906473 is a wasteful number, since it uses less digits than its factorization.

1906473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3695.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1906473 is about 1380.7508826722. The cubic root of 1906473 is about 123.9967264138.

The spelling of 1906473 in words is "one million, nine hundred six thousand, four hundred seventy-three".