1090947 has 16 divisors (see below), whose sum is σ = 1709568. Its totient is φ = 610080.

The previous prime is 1090939. The next prime is 1090949. The reversal of 1090947 is 7490901.

It is not a de Polignac number, because 1090947 - 2³ = 1090939 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1090949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 843 + ... + 1700.

It is an arithmetic number, because the mean of its divisors is an integer number (106848).

2^1090947 is an apocalyptic number.

1090947 is a deficient number, since it is larger than the sum of its proper divisors (618621).

1090947 is a wasteful number, since it uses less digits than its factorization.

1090947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1090947 is about 1044.4840831722. The cubic root of 1090947 is about 102.9440422475.

The spelling of 1090947 in words is "one million, ninety thousand, nine hundred forty-seven".