378553879 has 8 divisors (see below), whose sum is σ = 415983888. Its totient is φ = 341626560.

The previous prime is 378553843. The next prime is 378553913. The reversal of 378553879 is 978355873.

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

It is not a de Polignac number, because 378553879 - 2⁹ = 378553367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378553079) 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, 124092 + ... + 127105.

It is an arithmetic number, because the mean of its divisors is an integer number (51997986).

Almost surely, 2^378553879 is an apocalyptic number.

378553879 is a deficient number, since it is larger than the sum of its proper divisors (37430009).

378553879 is a wasteful number, since it uses less digits than its factorization.

378553879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251345.

The product of its digits is 6350400, while the sum is 55.

The square root of 378553879 is about 19456.4611119289. The cubic root of 378553879 is about 723.3956622419.

The spelling of 378553879 in words is "three hundred seventy-eight million, five hundred fifty-three thousand, eight hundred seventy-nine".