1005694 has 4 divisors (see below), whose sum is σ = 1508544. Its totient is φ = 502846.

The previous prime is 1005679. The next prime is 1005701. The reversal of 1005694 is 4965001.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1005694² = 2022840843272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251422 + ... + 251425.

It is an arithmetic number, because the mean of its divisors is an integer number (377136).

2^1005694 is an apocalyptic number.

1005694 is a deficient number, since it is larger than the sum of its proper divisors (502850).

1005694 is an equidigital number, since it uses as much as digits as its factorization.

1005694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502849.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1005694 is about 1002.8429587927. The cubic root of 1005694 is about 100.1894408949.

The spelling of 1005694 in words is "one million, five thousand, six hundred ninety-four".