7948889423 has 4 divisors (see below), whose sum is σ = 7949658600. Its totient is φ = 7948120248.

The previous prime is 7948889411. The next prime is 7948889441. The reversal of 7948889423 is 3249888497.

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 7948889423 - 2¹² = 7948885327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7948889453) 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, 368873 + ... + 389826.

It is an arithmetic number, because the mean of its divisors is an integer number (1987414650).

Almost surely, 2^7948889423 is an apocalyptic number.

7948889423 is a deficient number, since it is larger than the sum of its proper divisors (769177).

7948889423 is a wasteful number, since it uses less digits than its factorization.

7948889423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769176.

The product of its digits is 27869184, while the sum is 62.

The square root of 7948889423 is about 89156.5444765554. The cubic root of 7948889423 is about 1995.7316824629.

The spelling of 7948889423 in words is "seven billion, nine hundred forty-eight million, eight hundred eighty-nine thousand, four hundred twenty-three".