1073631 has 8 divisors (see below), whose sum is σ = 1541680. Its totient is φ = 660672.

The previous prime is 1073627. The next prime is 1073647. The reversal of 1073631 is 1363701.

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

It is not a de Polignac number, because 1073631 - 2² = 1073627 is a prime.

It is a super-2 number, since 2×1073631² = 2305367048322, which contains 22 as substring.

It is a Duffinian number.

1073631 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1073598 and 1073607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1073651) 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, 13726 + ... + 13803.

It is an arithmetic number, because the mean of its divisors is an integer number (192710).

2^1073631 is an apocalyptic number.

1073631 is a deficient number, since it is larger than the sum of its proper divisors (468049).

1073631 is a wasteful number, since it uses less digits than its factorization.

1073631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27545.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 1073631 is about 1036.1616669227. The cubic root of 1073631 is about 102.3964768787.

The spelling of 1073631 in words is "one million, seventy-three thousand, six hundred thirty-one".