78941641 has 8 divisors (see below), whose sum is σ = 79854464. Its totient is φ = 78034320.

The previous prime is 78941633. The next prime is 78941647. The reversal of 78941641 is 14614987.

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 78941641 - 2³ = 78941633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78941594 and 78941603.

It is not an unprimeable number, because it can be changed into a prime (78941647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31936 + ... + 34318.

It is an arithmetic number, because the mean of its divisors is an integer number (9981808).

Almost surely, 2^78941641 is an apocalyptic number.

It is an amenable number.

78941641 is a deficient number, since it is larger than the sum of its proper divisors (912823).

78941641 is a wasteful number, since it uses less digits than its factorization.

78941641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751.

The product of its digits is 48384, while the sum is 40.

The square root of 78941641 is about 8884.9108605545. The cubic root of 78941641 is about 428.9783588028.

The spelling of 78941641 in words is "seventy-eight million, nine hundred forty-one thousand, six hundred forty-one".