378698654 has 4 divisors (see below), whose sum is σ = 568047984. Its totient is φ = 189349326.

The previous prime is 378698627. The next prime is 378698699. The reversal of 378698654 is 456896873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 456896873 = 577 ⋅791849.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 378698654.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94674662 + ... + 94674665.

It is an arithmetic number, because the mean of its divisors is an integer number (142011996).

Almost surely, 2^378698654 is an apocalyptic number.

378698654 is a deficient number, since it is larger than the sum of its proper divisors (189349330).

378698654 is a wasteful number, since it uses less digits than its factorization.

378698654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189349329.

The product of its digits is 8709120, while the sum is 56.

The square root of 378698654 is about 19460.1812427326. The cubic root of 378698654 is about 723.4878695116.

The spelling of 378698654 in words is "three hundred seventy-eight million, six hundred ninety-eight thousand, six hundred fifty-four".