6723437834 has 4 divisors (see below), whose sum is σ = 10085156754. Its totient is φ = 3361718916.

The previous prime is 6723437741. The next prime is 6723437837. The reversal of 6723437834 is 4387343276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5798365609 + 925072225 = 76147^2 + 30415^2 .

It is a super-2 number, since 2×6723437834² = 90409232615325223112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6723437837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1680859457 + ... + 1680859460.

Almost surely, 2^6723437834 is an apocalyptic number.

6723437834 is a deficient number, since it is larger than the sum of its proper divisors (3361718920).

6723437834 is a wasteful number, since it uses less digits than its factorization.

6723437834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361718919.

The product of its digits is 2032128, while the sum is 47.

The square root of 6723437834 is about 81996.5720868867. The cubic root of 6723437834 is about 1887.3993358534.

The spelling of 6723437834 in words is "six billion, seven hundred twenty-three million, four hundred thirty-seven thousand, eight hundred thirty-four".