378486497 has 8 divisors (see below), whose sum is σ = 380975400. Its totient is φ = 376006144.

The previous prime is 378486481. The next prime is 378486503. The reversal of 378486497 is 794684873.

It can be written as a sum of positive squares in 4 ways, for example, as 48664576 + 329821921 = 6976^2 + 18161^2 .

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 378486497 - 2⁴ = 378486481 is a prime.

It is a super-2 number, since 2×378486497² = 286504056822662018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378486467) 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, 102833 + ... + 106449.

It is an arithmetic number, because the mean of its divisors is an integer number (47621925).

Almost surely, 2^378486497 is an apocalyptic number.

It is an amenable number.

378486497 is a deficient number, since it is larger than the sum of its proper divisors (2488903).

378486497 is a wasteful number, since it uses less digits than its factorization.

378486497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275.

The product of its digits is 8128512, while the sum is 56.

The square root of 378486497 is about 19454.7294250010. The cubic root of 378486497 is about 723.3527385952.

The spelling of 378486497 in words is "three hundred seventy-eight million, four hundred eighty-six thousand, four hundred ninety-seven".