3613554 has 72 divisors (see below), whose sum is σ = 9683388. Its totient is φ = 967680.

The previous prime is 3613543. The next prime is 3613559. The reversal of 3613554 is 4553163.

It can be written as a sum of positive squares in 2 ways, for example, as 3337929 + 275625 = 1827^2 + 525^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (5400) is a multiple of the sum of its prime divisors (270).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3613559) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14874 + ... + 15114.

Almost surely, 2^3613554 is an apocalyptic number.

3613554 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3613554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4841694).

3613554 is an abundant number, since it is smaller than the sum of its proper divisors (6069834).

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

3613554 is a wasteful number, since it uses less digits than its factorization.

3613554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 270 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 3613554 is about 1900.9350330824. The cubic root of 3613554 is about 153.4539892586.

The spelling of 3613554 in words is "three million, six hundred thirteen thousand, five hundred fifty-four".