3537986 has 4 divisors (see below), whose sum is σ = 5306982. Its totient is φ = 1768992.

The previous prime is 3537983. The next prime is 3537991. The reversal of 3537986 is 6897353.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3171961 + 366025 = 1781^2 + 605^2 .

It is not an unprimeable number, because it can be changed into a prime (3537983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 884495 + ... + 884498.

Almost surely, 2^3537986 is an apocalyptic number.

3537986 is a deficient number, since it is larger than the sum of its proper divisors (1768996).

3537986 is a wasteful number, since it uses less digits than its factorization.

3537986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768995.

The product of its digits is 136080, while the sum is 41.

The square root of 3537986 is about 1880.9534816151. The cubic root of 3537986 is about 152.3767489323.

The spelling of 3537986 in words is "three million, five hundred thirty-seven thousand, nine hundred eighty-six".