378651937 has 4 divisors (see below), whose sum is σ = 387457840. Its totient is φ = 369846036.

The previous prime is 378651919. The next prime is 378651953. The reversal of 378651937 is 739156873.

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.

It is a cyclic number.

It is not a de Polignac number, because 378651937 - 2⁷ = 378651809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378651137) 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, 4402887 + ... + 4402972.

It is an arithmetic number, because the mean of its divisors is an integer number (96864460).

Almost surely, 2^378651937 is an apocalyptic number.

It is an amenable number.

378651937 is a deficient number, since it is larger than the sum of its proper divisors (8805903).

378651937 is an equidigital number, since it uses as much as digits as its factorization.

378651937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805902.

The product of its digits is 952560, while the sum is 49.

The square root of 378651937 is about 19458.9808828726. The cubic root of 378651937 is about 723.4581179995.

The spelling of 378651937 in words is "three hundred seventy-eight million, six hundred fifty-one thousand, nine hundred thirty-seven".