378632753 has 4 divisors (see below), whose sum is σ = 378672228. Its totient is φ = 378593280.

The previous prime is 378632731. The next prime is 378632767. The reversal of 378632753 is 357236873.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 357236873 = 7 ⋅51033839.

It can be written as a sum of positive squares in 2 ways, for example, as 254466304 + 124166449 = 15952^2 + 11143^2 .

It is a cyclic number.

It is not a de Polignac number, because 378632753 - 2¹⁸ = 378370609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378632713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4913 + ... + 27953.

It is an arithmetic number, because the mean of its divisors is an integer number (94668057).

Almost surely, 2^378632753 is an apocalyptic number.

It is an amenable number.

378632753 is a deficient number, since it is larger than the sum of its proper divisors (39475).

378632753 is a wasteful number, since it uses less digits than its factorization.

378632753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39474.

The product of its digits is 635040, while the sum is 44.

The square root of 378632753 is about 19458.4879422837. The cubic root of 378632753 is about 723.4459000463.

The spelling of 378632753 in words is "three hundred seventy-eight million, six hundred thirty-two thousand, seven hundred fifty-three".