4094969639 has 4 divisors (see below), whose sum is σ = 4335850224. Its totient is φ = 3854089056.

The previous prime is 4094969633. The next prime is 4094969653. The reversal of 4094969639 is 9369694904.

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 4094969639 - 2¹² = 4094965543 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 (4094969633) 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, 120440267 + ... + 120440300.

It is an arithmetic number, because the mean of its divisors is an integer number (1083962556).

Almost surely, 2^4094969639 is an apocalyptic number.

4094969639 is a deficient number, since it is larger than the sum of its proper divisors (240880585).

4094969639 is a wasteful number, since it uses less digits than its factorization.

4094969639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240880584.

The product of its (nonzero) digits is 11337408, while the sum is 59.

The square root of 4094969639 is about 63991.9497983926. The cubic root of 4094969639 is about 1599.8658271603.

The spelling of 4094969639 in words is "four billion, ninety-four million, nine hundred sixty-nine thousand, six hundred thirty-nine".