6894749 has 4 divisors (see below), whose sum is σ = 7055136. Its totient is φ = 6734364.

The previous prime is 6894743. The next prime is 6894751. The reversal of 6894749 is 9474986.

6894749 is nontrivially palindromic in base 7.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9474986 = 2 ⋅4737493.

It is a cyclic number.

It is not a de Polignac number, because 6894749 - 2¹⁶ = 6829213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6894743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80129 + ... + 80214.

It is an arithmetic number, because the mean of its divisors is an integer number (1763784).

Almost surely, 2^6894749 is an apocalyptic number.

It is an amenable number.

6894749 is a deficient number, since it is larger than the sum of its proper divisors (160387).

6894749 is a wasteful number, since it uses less digits than its factorization.

6894749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160386.

The product of its digits is 435456, while the sum is 47.

The square root of 6894749 is about 2625.7854063118. The cubic root of 6894749 is about 190.3295205122.

The spelling of 6894749 in words is "six million, eight hundred ninety-four thousand, seven hundred forty-nine".