673447378 has 8 divisors (see below), whose sum is σ = 1011073968. Its totient is φ = 336422724.

The previous prime is 673447363. The next prime is 673447391. The reversal of 673447378 is 873744376.

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

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, 147676 + ... + 152167.

It is an arithmetic number, because the mean of its divisors is an integer number (126384246).

Almost surely, 2^673447378 is an apocalyptic number.

673447378 is a deficient number, since it is larger than the sum of its proper divisors (337626590).

673447378 is a wasteful number, since it uses less digits than its factorization.

673447378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300968.

The product of its digits is 2370816, while the sum is 49.

The square root of 673447378 is about 25950.8646869425. The cubic root of 673447378 is about 876.5322281923.

The spelling of 673447378 in words is "six hundred seventy-three million, four hundred forty-seven thousand, three hundred seventy-eight".