247378 has 8 divisors (see below), whose sum is σ = 373680. Its totient is φ = 122820.

The previous prime is 247369. The next prime is 247381. The reversal of 247378 is 873742.

247378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×247378² = 122391749768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13 + ... + 703.

It is an arithmetic number, because the mean of its divisors is an integer number (46710).

2²⁴⁷³⁷⁸ is an apocalyptic number.

247378 is a deficient number, since it is larger than the sum of its proper divisors (126302).

247378 is a wasteful number, since it uses less digits than its factorization.

247378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872.

The product of its digits is 9408, while the sum is 31.

The square root of 247378 is about 497.3710888260. The cubic root of 247378 is about 62.7750438387.

It can be divided in two parts, 247 and 378, that added together give a 4-th power (625 = 5⁴).

The spelling of 247378 in words is "two hundred forty-seven thousand, three hundred seventy-eight".