3641247 has 16 divisors (see below), whose sum is σ = 5712480. Its totient is φ = 2284416.

The previous prime is 3641243. The next prime is 3641263. The reversal of 3641247 is 7421463.

It is not a de Polignac number, because 3641247 - 2² = 3641243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 3641247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3641243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3508 + ... + 4425.

It is an arithmetic number, because the mean of its divisors is an integer number (357030).

Almost surely, 2^3641247 is an apocalyptic number.

3641247 is a deficient number, since it is larger than the sum of its proper divisors (2071233).

3641247 is a wasteful number, since it uses less digits than its factorization.

3641247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7959 (or 7953 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 3641247 is about 1908.2051776473. The cubic root of 3641247 is about 153.8449978054.

It can be divided in two parts, 3 and 641247, that multiplied together give a triangular number (1923741 = T₁₉₆₁).

The spelling of 3641247 in words is "three million, six hundred forty-one thousand, two hundred forty-seven".