4069691 has 4 divisors (see below), whose sum is σ = 4074000. Its totient is φ = 4065384.

The previous prime is 4069687. The next prime is 4069693. The reversal of 4069691 is 1969604.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4069691 - 2² = 4069687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4069693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56 + ... + 2853.

It is an arithmetic number, because the mean of its divisors is an integer number (1018500).

Almost surely, 2^4069691 is an apocalyptic number.

4069691 is a deficient number, since it is larger than the sum of its proper divisors (4309).

4069691 is a wasteful number, since it uses less digits than its factorization.

4069691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 4069691 is about 2017.3475159228. The cubic root of 4069691 is about 159.6566988245.

The spelling of 4069691 in words is "four million, sixty-nine thousand, six hundred ninety-one".