3501866 has 16 divisors (see below), whose sum is σ = 5481000. Its totient is φ = 1675968.

The previous prime is 3501863. The next prime is 3501887. The reversal of 3501866 is 6681053.

It can be written as a sum of positive squares in 4 ways, for example, as 3500641 + 1225 = 1871^2 + 35^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (3501863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9860 + ... + 10208.

Almost surely, 2^3501866 is an apocalyptic number.

3501866 is a deficient number, since it is larger than the sum of its proper divisors (1979134).

3501866 is a wasteful number, since it uses less digits than its factorization.

3501866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3501866 is about 1871.3273364112. The cubic root of 3501866 is about 151.8564260621.

The spelling of 3501866 in words is "three million, five hundred one thousand, eight hundred sixty-six".