10139784 has 32 divisors (see below), whose sum is σ = 25427520. Its totient is φ = 3369536.

The previous prime is 10139771. The next prime is 10139791. The reversal of 10139784 is 48793101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15202 + ... + 15854.

It is an arithmetic number, because the mean of its divisors is an integer number (794610).

Almost surely, 2^10139784 is an apocalyptic number.

It is an amenable number.

10139784 is an abundant number, since it is smaller than the sum of its proper divisors (15287736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10139784 is a wasteful number, since it uses less digits than its factorization.

10139784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1305 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 10139784 is about 3184.3027494257. The cubic root of 10139784 is about 216.4426792409.

The spelling of 10139784 in words is "ten million, one hundred thirty-nine thousand, seven hundred eighty-four".