7013638 has 4 divisors (see below), whose sum is σ = 10520460. Its totient is φ = 3506818.

The previous prime is 7013623. The next prime is 7013653. The reversal of 7013638 is 8363107.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8363107 = 29 ⋅288383.

It is an interprime number because it is at equal distance from previous prime (7013623) and next prime (7013653).

It is a super-2 number, since 2×7013638² = 98382235990088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1753408 + ... + 1753411.

It is an arithmetic number, because the mean of its divisors is an integer number (2630115).

Almost surely, 2^7013638 is an apocalyptic number.

7013638 is a deficient number, since it is larger than the sum of its proper divisors (3506822).

7013638 is a wasteful number, since it uses less digits than its factorization.

7013638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506821.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 7013638 is about 2648.3273966789. The cubic root of 7013638 is about 191.4172689017.

The spelling of 7013638 in words is "seven million, thirteen thousand, six hundred thirty-eight".