6949400071 has 8 divisors (see below), whose sum is σ = 6971581440. Its totient is φ = 6927254712.

The previous prime is 6949400057. The next prime is 6949400093. The reversal of 6949400071 is 1700049496.

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 6949400071 - 2⁵ = 6949400039 is a prime.

It is a super-2 number, since 2×6949400071² = 96588322693629610082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6949399997 and 6949400033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6949400971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407706 + ... + 424408.

It is an arithmetic number, because the mean of its divisors is an integer number (871447680).

Almost surely, 2^6949400071 is an apocalyptic number.

6949400071 is a deficient number, since it is larger than the sum of its proper divisors (22181369).

6949400071 is a wasteful number, since it uses less digits than its factorization.

6949400071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18005.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 6949400071 is about 83363.0617899799. The cubic root of 6949400071 is about 1908.3107851182.

The spelling of 6949400071 in words is "six billion, nine hundred forty-nine million, four hundred thousand, seventy-one".