1090629 has 6 divisors (see below), whose sum is σ = 1575366. Its totient is φ = 727080.

The previous prime is 1090627. The next prime is 1090681. The reversal of 1090629 is 9260901.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1046529 + 44100 = 1023^2 + 210^2 .

It is not a de Polignac number, because 1090629 - 2¹ = 1090627 is a prime.

It is a Curzon number.

1090629 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60582 + ... + 60599.

It is an arithmetic number, because the mean of its divisors is an integer number (262561).

2^1090629 is an apocalyptic number.

It is an amenable number.

1090629 is a deficient number, since it is larger than the sum of its proper divisors (484737).

1090629 is a wasteful number, since it uses less digits than its factorization.

1090629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121187 (or 121184 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1090629 is about 1044.3318438121. The cubic root of 1090629 is about 102.9340388937.

The spelling of 1090629 in words is "one million, ninety thousand, six hundred twenty-nine".