378789501 has 4 divisors (see below), whose sum is σ = 505052672. Its totient is φ = 252526332.

The previous prime is 378789487. The next prime is 378789511. The reversal of 378789501 is 105987873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 105987873 = 3 ⋅35329291.

It is not a de Polignac number, because 378789501 - 2⁵ = 378789469 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 (378789511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63131581 + ... + 63131586.

It is an arithmetic number, because the mean of its divisors is an integer number (126263168).

Almost surely, 2^378789501 is an apocalyptic number.

It is an amenable number.

378789501 is a deficient number, since it is larger than the sum of its proper divisors (126263171).

378789501 is a wasteful number, since it uses less digits than its factorization.

378789501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126263170.

The product of its (nonzero) digits is 423360, while the sum is 48.

The square root of 378789501 is about 19462.5152793774. The cubic root of 378789501 is about 723.5457180117.

The spelling of 378789501 in words is "three hundred seventy-eight million, seven hundred eighty-nine thousand, five hundred one".