7940233547 has 4 divisors (see below), whose sum is σ = 7956538416. Its totient is φ = 7923928680.

The previous prime is 7940233501. The next prime is 7940233549. The reversal of 7940233547 is 7453320497.

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 7940233547 - 2¹⁴ = 7940217163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7940233498 and 7940233507.

It is not an unprimeable number, because it can be changed into a prime (7940233549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8151704 + ... + 8152677.

It is an arithmetic number, because the mean of its divisors is an integer number (1989134604).

Almost surely, 2^7940233547 is an apocalyptic number.

7940233547 is a deficient number, since it is larger than the sum of its proper divisors (16304869).

7940233547 is a wasteful number, since it uses less digits than its factorization.

7940233547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16304868.

The product of its (nonzero) digits is 635040, while the sum is 44.

The square root of 7940233547 is about 89107.9881211556. The cubic root of 7940233547 is about 1995.0070076366.

The spelling of 7940233547 in words is "seven billion, nine hundred forty million, two hundred thirty-three thousand, five hundred forty-seven".