3647401 has 8 divisors (see below), whose sum is σ = 3956904. Its totient is φ = 3348480.

The previous prime is 3647393. The next prime is 3647419. The reversal of 3647401 is 1047463.

It can be written as a sum of positive squares in 4 ways, for example, as 1010025 + 2637376 = 1005^2 + 1624^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3647401 - 2³ = 3647393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3647431) 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, 1920 + ... + 3313.

It is an arithmetic number, because the mean of its divisors is an integer number (494613).

Almost surely, 2^3647401 is an apocalyptic number.

It is an amenable number.

3647401 is a deficient number, since it is larger than the sum of its proper divisors (309503).

3647401 is a wasteful number, since it uses less digits than its factorization.

3647401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5291.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 3647401 is about 1909.8170069407. The cubic root of 3647401 is about 153.9316191606.

The spelling of 3647401 in words is "three million, six hundred forty-seven thousand, four hundred one".