3557961 has 24 divisors (see below), whose sum is σ = 5687136. Its totient is φ = 2125440.

The previous prime is 3557951. The next prime is 3557977. The reversal of 3557961 is 1697553.

It is a happy number.

It is not a de Polignac number, because 3557961 - 2⁷ = 3557833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3557951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8001 + ... + 8433.

It is an arithmetic number, because the mean of its divisors is an integer number (236964).

Almost surely, 2^3557961 is an apocalyptic number.

It is an amenable number.

3557961 is a deficient number, since it is larger than the sum of its proper divisors (2129175).

3557961 is a wasteful number, since it uses less digits than its factorization.

3557961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 530 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 3557961 is about 1886.2558151004. The cubic root of 3557961 is about 152.6629772462.

The spelling of 3557961 in words is "three million, five hundred fifty-seven thousand, nine hundred sixty-one".