63009381 has 8 divisors (see below), whose sum is σ = 84062880. Its totient is φ = 41981072.

The previous prime is 63009379. The next prime is 63009433. The reversal of 63009381 is 18390036.

63009381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63009381 - 2¹ = 63009379 is a prime.

It is a super-2 number, since 2×63009381² = 7940364188006322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63009311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631 + ... + 11243.

It is an arithmetic number, because the mean of its divisors is an integer number (10507860).

Almost surely, 2^63009381 is an apocalyptic number.

It is an amenable number.

63009381 is a deficient number, since it is larger than the sum of its proper divisors (21053499).

63009381 is a wasteful number, since it uses less digits than its factorization.

63009381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12595.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 63009381 is about 7937.8448586502. The cubic root of 63009381 is about 397.9254698283.

The spelling of 63009381 in words is "sixty-three million, nine thousand, three hundred eighty-one".