78948961 has 8 divisors (see below), whose sum is σ = 97168064. Its totient is φ = 62465040.

The previous prime is 78948953. The next prime is 78948967. The reversal of 78948961 is 16984987.

It is a happy number.

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 78948961 - 2³ = 78948953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78948899 and 78948908.

It is not an unprimeable number, because it can be changed into a prime (78948967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433695 + ... + 433876.

It is an arithmetic number, because the mean of its divisors is an integer number (12146008).

Almost surely, 2^78948961 is an apocalyptic number.

It is an amenable number.

78948961 is a deficient number, since it is larger than the sum of its proper divisors (18219103).

78948961 is a wasteful number, since it uses less digits than its factorization.

78948961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867591.

The product of its digits is 870912, while the sum is 52.

The square root of 78948961 is about 8885.3227853579. The cubic root of 78948961 is about 428.9916176460.

The spelling of 78948961 in words is "seventy-eight million, nine hundred forty-eight thousand, nine hundred sixty-one".