3561372 has 18 divisors (see below), whose sum is σ = 9002448.
Its totient is φ = 1187112.
The previous prime is 3561367. The next prime is 3561377. The reversal of 3561372 is 2731653.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (3561367) and next prime (3561377).
It is a tau number, because it is divible by the number of its divisors (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3561377) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49428 + ... + 49499.
It is an arithmetic number, because the mean of its divisors is an integer number (500136).
Almost surely, 23561372 is an apocalyptic number.
It is an amenable number.
3561372 is an abundant number, since it is smaller than the sum of its proper divisors (5441076).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3561372 is a wasteful number, since it uses less digits than its factorization.
3561372 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 98937 (or 98932 counting only the distinct ones).
The product of its digits is 3780, while the sum is 27.
The square root of 3561372 is about 1887.1597706607.
The cubic root of 3561372 is about 152.7117474169.
It can be divided in two parts, 356 and 1372, that added together give a cube (1728 = 123).
The spelling of 3561372 in words is "three million, five hundred sixty-one thousand, three hundred seventy-two".