78887347 has 8 divisors (see below), whose sum is σ = 98353152. Its totient is φ = 61470600.

The previous prime is 78887339. The next prime is 78887357. The reversal of 78887347 is 74378887.

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 78887347 - 2³ = 78887339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78887294 and 78887303.

It is not an unprimeable number, because it can be changed into a prime (78887317) 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, 512179 + ... + 512332.

It is an arithmetic number, because the mean of its divisors is an integer number (12294144).

Almost surely, 2^78887347 is an apocalyptic number.

78887347 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

78887347 is a deficient number, since it is larger than the sum of its proper divisors (19465805).

78887347 is a wasteful number, since it uses less digits than its factorization.

78887347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024529.

The product of its digits is 2107392, while the sum is 52.

The square root of 78887347 is about 8881.8549301371. The cubic root of 78887347 is about 428.8799895416.

The spelling of 78887347 in words is "seventy-eight million, eight hundred eighty-seven thousand, three hundred forty-seven".