1006738 has 4 divisors (see below), whose sum is σ = 1510110. Its totient is φ = 503368.

The previous prime is 1006721. The next prime is 1006739. The reversal of 1006738 is 8376001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8376001 = 139 ⋅60259.

It can be written as a sum of positive squares in only one way, i.e., 1006009 + 729 = 1003^2 + 27^2 .

It is not an unprimeable number, because it can be changed into a prime (1006739) 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 as a sum of consecutive naturals, namely, 251683 + ... + 251686.

2^1006738 is an apocalyptic number.

1006738 is a deficient number, since it is larger than the sum of its proper divisors (503372).

1006738 is an equidigital number, since it uses as much as digits as its factorization.

1006738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503371.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1006738 is about 1003.3633439587. The cubic root of 1006738 is about 100.2240974283.

The spelling of 1006738 in words is "one million, six thousand, seven hundred thirty-eight".