10378809 has 12 divisors (see below), whose sum is σ = 17133376. Its totient is φ = 5930712.

The previous prime is 10378793. The next prime is 10378813. The reversal of 10378809 is 90887301.

It is not a de Polignac number, because 10378809 - 2⁴ = 10378793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10378829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82309 + ... + 82434.

Almost surely, 2^10378809 is an apocalyptic number.

It is an amenable number.

10378809 is a deficient number, since it is larger than the sum of its proper divisors (6754567).

10378809 is a wasteful number, since it uses less digits than its factorization.

10378809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164756 (or 164753 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 10378809 is about 3221.6158988930. The cubic root of 10378809 is about 218.1302212744.

The spelling of 10378809 in words is "ten million, three hundred seventy-eight thousand, eight hundred nine".