78973347 has 8 divisors (see below), whose sum is σ = 111491856. Its totient is φ = 49551872.

The previous prime is 78973333. The next prime is 78973373. The reversal of 78973347 is 74337987.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78973347 - 2¹⁴ = 78956963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78973296 and 78973305.

It is not an unprimeable number, because it can be changed into a prime (78903347) 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, 774198 + ... + 774299.

It is an arithmetic number, because the mean of its divisors is an integer number (13936482).

Almost surely, 2^78973347 is an apocalyptic number.

78973347 is a deficient number, since it is larger than the sum of its proper divisors (32518509).

78973347 is a wasteful number, since it uses less digits than its factorization.

78973347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548517.

The product of its digits is 889056, while the sum is 48.

The square root of 78973347 is about 8886.6949424406. The cubic root of 78973347 is about 429.0357825196.

The spelling of 78973347 in words is "seventy-eight million, nine hundred seventy-three thousand, three hundred forty-seven".