3506866 has 8 divisors (see below), whose sum is σ = 5738544. Its totient is φ = 1594020.

The previous prime is 3506863. The next prime is 3506869. The reversal of 3506866 is 6686053.

3506866 = T₇₉₃ + T₇₉₄ + ... + T₈₀₃.

It is an interprime number because it is at equal distance from previous prime (3506863) and next prime (3506869).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3506863) 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, 79680 + ... + 79723.

It is an arithmetic number, because the mean of its divisors is an integer number (717318).

Almost surely, 2^3506866 is an apocalyptic number.

3506866 is a deficient number, since it is larger than the sum of its proper divisors (2231678).

3506866 is a wasteful number, since it uses less digits than its factorization.

3506866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159416.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 3506866 is about 1872.6628100115. The cubic root of 3506866 is about 151.9286657429.

The spelling of 3506866 in words is "three million, five hundred six thousand, eight hundred sixty-six".