378964907 has 4 divisors (see below), whose sum is σ = 379019856. Its totient is φ = 378909960.

The previous prime is 378964903. The next prime is 378964933. The reversal of 378964907 is 709469873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 378964907 - 2² = 378964903 is a prime.

It is a super-2 number, since 2×378964907² = 287228801475037298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378964903) 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, 15344 + ... + 31517.

It is an arithmetic number, because the mean of its divisors is an integer number (94754964).

Almost surely, 2^378964907 is an apocalyptic number.

378964907 is a deficient number, since it is larger than the sum of its proper divisors (54949).

378964907 is an equidigital number, since it uses as much as digits as its factorization.

378964907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54948.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 378964907 is about 19467.0210099029. The cubic root of 378964907 is about 723.6573848476.

The spelling of 378964907 in words is "three hundred seventy-eight million, nine hundred sixty-four thousand, nine hundred seven".