3603261 has 4 divisors (see below), whose sum is σ = 4804352. Its totient is φ = 2402172.

The previous prime is 3603253. The next prime is 3603277. The reversal of 3603261 is 1623063.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3603261 - 2³ = 3603253 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3603251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600541 + ... + 600546.

It is an arithmetic number, because the mean of its divisors is an integer number (1201088).

Almost surely, 2^3603261 is an apocalyptic number.

It is an amenable number.

3603261 is a deficient number, since it is larger than the sum of its proper divisors (1201091).

3603261 is a wasteful number, since it uses less digits than its factorization.

3603261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201090.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3603261 is about 1898.2257505365. The cubic root of 3603261 is about 153.3081490880.

The spelling of 3603261 in words is "three million, six hundred three thousand, two hundred sixty-one".