6940891001 has 8 divisors (see below), whose sum is σ = 7832980800. Its totient is φ = 6092317840.

The previous prime is 6940890997. The next prime is 6940891021. The reversal of 6940891001 is 1001980496.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6940891001 - 2² = 6940890997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6940891021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10878821 + ... + 10879458.

It is an arithmetic number, because the mean of its divisors is an integer number (979122600).

Almost surely, 2^6940891001 is an apocalyptic number.

It is an amenable number.

6940891001 is a deficient number, since it is larger than the sum of its proper divisors (892089799).

6940891001 is a wasteful number, since it uses less digits than its factorization.

6940891001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21758319.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 6940891001 is about 83312.0099445452. The cubic root of 6940891001 is about 1907.5316012164.

The spelling of 6940891001 in words is "six billion, nine hundred forty million, eight hundred ninety-one thousand, one".