8130723 has 4 divisors (see below), whose sum is σ = 10840968. Its totient is φ = 5420480.

The previous prime is 8130721. The next prime is 8130737. The reversal of 8130723 is 3270318.

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 8130723 - 2¹ = 8130721 is a prime.

It is a super-2 number, since 2×8130723² = 132217313005458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8130693 and 8130702.

It is not an unprimeable number, because it can be changed into a prime (8130721) 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, 1355118 + ... + 1355123.

It is an arithmetic number, because the mean of its divisors is an integer number (2710242).

Almost surely, 2^8130723 is an apocalyptic number.

8130723 is a deficient number, since it is larger than the sum of its proper divisors (2710245).

8130723 is a wasteful number, since it uses less digits than its factorization.

8130723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710244.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 8130723 is about 2851.4422666433. The cubic root of 8130723 is about 201.0834781099.

The spelling of 8130723 in words is "eight million, one hundred thirty thousand, seven hundred twenty-three".