3678534 has 48 divisors (see below), whose sum is σ = 8570640. Its totient is φ = 1183896.

The previous prime is 3678529. The next prime is 3678539. The reversal of 3678534 is 4358763.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3678529) and next prime (3678539).

It is a super-2 number, since 2×3678534² = 27063224778312, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3678539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126832 + ... + 126860.

It is an arithmetic number, because the mean of its divisors is an integer number (178555).

Almost surely, 2^3678534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3678534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4285320).

3678534 is an abundant number, since it is smaller than the sum of its proper divisors (4892106).

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

3678534 is an frugal number, since it uses more digits than its factorization.

3678534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 34 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 3678534 is about 1917.9504685992. The cubic root of 3678534 is about 154.3683485909.

The spelling of 3678534 in words is "three million, six hundred seventy-eight thousand, five hundred thirty-four".