383634 has 12 divisors (see below), whose sum is σ = 831246. Its totient is φ = 127872.

The previous prime is 383633. The next prime is 383651. The reversal of 383634 is 436383.

It can be written as a sum of positive squares in only one way, i.e., 356409 + 27225 = 597^2 + 165^2 .

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 383598 and 383607.

It is not an unprimeable number, because it can be changed into a prime (383633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10639 + ... + 10674.

2³⁸³⁶³⁴ is an apocalyptic number.

383634 is an abundant number, since it is smaller than the sum of its proper divisors (447612).

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

383634 is a wasteful number, since it uses less digits than its factorization.

383634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21321 (or 21318 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 383634 is about 619.3819500115. The cubic root of 383634 is about 72.6617237985.

The spelling of 383634 in words is "three hundred eighty-three thousand, six hundred thirty-four".