6906403 has 12 divisors (see below), whose sum is σ = 8507592. Its totient is φ = 5570880.

The previous prime is 6906401. The next prime is 6906407. The reversal of 6906403 is 3046096.

It is not a de Polignac number, because 6906403 - 2¹ = 6906401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6906401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3313 + ... + 4978.

It is an arithmetic number, because the mean of its divisors is an integer number (708966).

Almost surely, 2^6906403 is an apocalyptic number.

6906403 is a deficient number, since it is larger than the sum of its proper divisors (1601189).

6906403 is a wasteful number, since it uses less digits than its factorization.

6906403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8322 (or 8315 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 6906403 is about 2628.0036149138. The cubic root of 6906403 is about 190.4366963583.

The spelling of 6906403 in words is "six million, nine hundred six thousand, four hundred three".