6961329407 has 4 divisors (see below), whose sum is σ = 6967607640. Its totient is φ = 6955051176.

The previous prime is 6961329373. The next prime is 6961329409. The reversal of 6961329407 is 7049231696.

It is a happy number.

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 6961329407 - 2⁶ = 6961329343 is a prime.

It is a super-2 number, since 2×6961329407² = 96920214225525943298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6961329409) 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, 3137453 + ... + 3139670.

It is an arithmetic number, because the mean of its divisors is an integer number (1741901910).

Almost surely, 2^6961329407 is an apocalyptic number.

6961329407 is a deficient number, since it is larger than the sum of its proper divisors (6278233).

6961329407 is a wasteful number, since it uses less digits than its factorization.

6961329407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6278232.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 6961329407 is about 83434.5816013960. The cubic root of 6961329407 is about 1909.4020959587.

The spelling of 6961329407 in words is "six billion, nine hundred sixty-one million, three hundred twenty-nine thousand, four hundred seven".