378973513 has 8 divisors (see below), whose sum is σ = 384561216. Its totient is φ = 373422000.

The previous prime is 378973459. The next prime is 378973531. The reversal of 378973513 is 315379873.

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 378973513 - 2¹⁷ = 378842441 is a prime.

It is a super-2 number, since 2×378973513² = 287241847111122338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378973583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12420 + ... + 30202.

It is an arithmetic number, because the mean of its divisors is an integer number (48070152).

Almost surely, 2^378973513 is an apocalyptic number.

It is an amenable number.

378973513 is a deficient number, since it is larger than the sum of its proper divisors (5587703).

378973513 is a wasteful number, since it uses less digits than its factorization.

378973513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18095.

The product of its digits is 476280, while the sum is 46.

The square root of 378973513 is about 19467.2420491450. The cubic root of 378973513 is about 723.6628627061.

The spelling of 378973513 in words is "three hundred seventy-eight million, nine hundred seventy-three thousand, five hundred thirteen".