78948047 has 8 divisors (see below), whose sum is σ = 81385056. Its totient is φ = 76527072.

The previous prime is 78948013. The next prime is 78948053. The reversal of 78948047 is 74084987.

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 78948047 - 2¹² = 78943951 is a prime.

It is a super-2 number, since 2×78948047² = 12465588250228418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78947992 and 78948010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78948547) 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, 6398 + ... + 14100.

It is an arithmetic number, because the mean of its divisors is an integer number (10173132).

Almost surely, 2^78948047 is an apocalyptic number.

78948047 is a deficient number, since it is larger than the sum of its proper divisors (2437009).

78948047 is a wasteful number, since it uses less digits than its factorization.

78948047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8017.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 78948047 is about 8885.2713520747. The cubic root of 78948047 is about 428.9899621467.

The spelling of 78948047 in words is "seventy-eight million, nine hundred forty-eight thousand, forty-seven".