1100007 has 16 divisors (see below), whose sum is σ = 1647360. Its totient is φ = 725400.

The previous prime is 1099997. The next prime is 1100009. The reversal of 1100007 is 7000011.

It is not a de Polignac number, because 1100007 - 2¹⁵ = 1067239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100009) 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, 3382 + ... + 3692.

It is an arithmetic number, because the mean of its divisors is an integer number (102960).

2^1100007 is an apocalyptic number.

1100007 is a deficient number, since it is larger than the sum of its proper divisors (547353).

1100007 is a wasteful number, since it uses less digits than its factorization.

1100007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 7, while the sum is 9.

The square root of 1100007 is about 1048.8121852839. The cubic root of 1100007 is about 103.2282305137.

Adding to 1100007 its reverse (7000011), we get a palindrome (8100018).

The spelling of 1100007 in words is "one million, one hundred thousand, seven".