378078997 has 8 divisors (see below), whose sum is σ = 401184576. Its totient is φ = 355069632.

The previous prime is 378078983. The next prime is 378079073. The reversal of 378078997 is 799870873.

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 a de Polignac number, because none of the positive numbers 2^k-378078997 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 (378078947) 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, 15873 + ... + 31750.

It is an arithmetic number, because the mean of its divisors is an integer number (50148072).

Almost surely, 2^378078997 is an apocalyptic number.

It is an amenable number.

378078997 is a deficient number, since it is larger than the sum of its proper divisors (23105579).

378078997 is a wasteful number, since it uses less digits than its factorization.

378078997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48107.

The product of its (nonzero) digits is 5334336, while the sum is 58.

The square root of 378078997 is about 19444.2535727140. The cubic root of 378078997 is about 723.0930445295.

The spelling of 378078997 in words is "three hundred seventy-eight million, seventy-eight thousand, nine hundred ninety-seven".