3561996 has 12 divisors (see below), whose sum is σ = 8311352. Its totient is φ = 1187328.

The previous prime is 3561977. The next prime is 3561997. The reversal of 3561996 is 6991653.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3561997) 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, 148405 + ... + 148428.

Almost surely, 2^3561996 is an apocalyptic number.

It is an amenable number.

3561996 is an abundant number, since it is smaller than the sum of its proper divisors (4749356).

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

3561996 is a wasteful number, since it uses less digits than its factorization.

3561996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296840 (or 296838 counting only the distinct ones).

The product of its digits is 43740, while the sum is 39.

The square root of 3561996 is about 1887.3250912336. The cubic root of 3561996 is about 152.7206659428.

The spelling of 3561996 in words is "three million, five hundred sixty-one thousand, nine hundred ninety-six".