378779601 has 8 divisors (see below), whose sum is σ = 534747744. Its totient is φ = 237665600.

The previous prime is 378779591. The next prime is 378779629. The reversal of 378779601 is 106977873.

It is a happy number.

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 378779601 - 2²⁷ = 244561873 is a prime.

It is a super-2 number, since 2×378779601² = 286947972267438402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378779671) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3713475 + ... + 3713576.

It is an arithmetic number, because the mean of its divisors is an integer number (66843468).

Almost surely, 2^378779601 is an apocalyptic number.

It is an amenable number.

378779601 is a deficient number, since it is larger than the sum of its proper divisors (155968143).

378779601 is a wasteful number, since it uses less digits than its factorization.

378779601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7427071.

The product of its (nonzero) digits is 444528, while the sum is 48.

The square root of 378779601 is about 19462.2609426551. The cubic root of 378779601 is about 723.5394144535.

The spelling of 378779601 in words is "three hundred seventy-eight million, seven hundred seventy-nine thousand, six hundred one".