3720166 has 4 divisors (see below), whose sum is σ = 5580252. Its totient is φ = 1860082.

The previous prime is 3720163. The next prime is 3720169. The reversal of 3720166 is 6610273.

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

It is an interprime number because it is at equal distance from previous prime (3720163) and next prime (3720169).

It is a self number, because there is not a number n which added to its sum of digits gives 3720166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 930040 + ... + 930043.

It is an arithmetic number, because the mean of its divisors is an integer number (1395063).

Almost surely, 2^3720166 is an apocalyptic number.

3720166 is a deficient number, since it is larger than the sum of its proper divisors (1860086).

3720166 is a wasteful number, since it uses less digits than its factorization.

3720166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860085.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 3720166 is about 1928.7731852139. The cubic root of 3720166 is about 154.9485226212.

The spelling of 3720166 in words is "three million, seven hundred twenty thousand, one hundred sixty-six".