7882740421 has 8 divisors (see below), whose sum is σ = 8410146624. Its totient is φ = 7362413760.

The previous prime is 7882740361. The next prime is 7882740427. The reversal of 7882740421 is 1240472887.

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 7882740421 - 2¹⁷ = 7882609349 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 (7882740427) 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 7 ways as a sum of consecutive naturals, for example, 1767585 + ... + 1772038.

It is an arithmetic number, because the mean of its divisors is an integer number (1051268328).

Almost surely, 2^7882740421 is an apocalyptic number.

It is an amenable number.

7882740421 is a deficient number, since it is larger than the sum of its proper divisors (527406203).

7882740421 is a wasteful number, since it uses less digits than its factorization.

7882740421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539771.

The product of its (nonzero) digits is 200704, while the sum is 43.

The square root of 7882740421 is about 88784.7983666123. The cubic root of 7882740421 is about 1990.1802334170.

The spelling of 7882740421 in words is "seven billion, eight hundred eighty-two million, seven hundred forty thousand, four hundred twenty-one".