7921343107 has 8 divisors (see below), whose sum is σ = 8261171072. Its totient is φ = 7586784000.

The previous prime is 7921343057. The next prime is 7921343113. The reversal of 7921343107 is 7013431297.

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 7921343107 - 2³¹ = 5773859459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7921343117) 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, 1314144 + ... + 1320157.

It is an arithmetic number, because the mean of its divisors is an integer number (1032646384).

Almost surely, 2^7921343107 is an apocalyptic number.

7921343107 is a deficient number, since it is larger than the sum of its proper divisors (339827965).

7921343107 is a wasteful number, since it uses less digits than its factorization.

7921343107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634429.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 7921343107 is about 89001.9275465425. The cubic root of 7921343107 is about 1993.4236584841.

The spelling of 7921343107 in words is "seven billion, nine hundred twenty-one million, three hundred forty-three thousand, one hundred seven".