6909963 has 4 divisors (see below), whose sum is σ = 9213288. Its totient is φ = 4606640.

The previous prime is 6909949. The next prime is 6909967. The reversal of 6909963 is 3699096.

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

It is a cyclic number.

It is not a de Polignac number, because 6909963 - 2⁶ = 6909899 is a prime.

It is a super-2 number, since 2×6909963² = 95495177322738, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (6909967) 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, 1151658 + ... + 1151663.

It is an arithmetic number, because the mean of its divisors is an integer number (2303322).

Almost surely, 2^6909963 is an apocalyptic number.

6909963 is a deficient number, since it is larger than the sum of its proper divisors (2303325).

6909963 is a wasteful number, since it uses less digits than its factorization.

6909963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303324.

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 6909963 is about 2628.6808478779. The cubic root of 6909963 is about 190.4694118054.

The spelling of 6909963 in words is "six million, nine hundred nine thousand, nine hundred sixty-three".