387634 has 16 divisors (see below), whose sum is σ = 663768. Its totient is φ = 168192.

The previous prime is 387631. The next prime is 387641. The reversal of 387634 is 436783.

387634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 363609 + 24025 = 603^2 + 155^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 387596 and 387605.

It is not an unprimeable number, because it can be changed into a prime (387631) 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, 4 + ... + 880.

2³⁸⁷⁶³⁴ is an apocalyptic number.

387634 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

387634 is a deficient number, since it is larger than the sum of its proper divisors (276134).

387634 is a wasteful number, since it uses less digits than its factorization.

387634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909.

The product of its digits is 12096, while the sum is 31.

The square root of 387634 is about 622.6026019862. The cubic root of 387634 is about 72.9133894944.

It can be divided in two parts, 38 and 7634, that multiplied together give a palindrome (290092).

The spelling of 387634 in words is "three hundred eighty-seven thousand, six hundred thirty-four".