3505971 has 16 divisors (see below), whose sum is σ = 5417984. Its totient is φ = 1975104.

The previous prime is 3505969. The next prime is 3505973. The reversal of 3505971 is 1795053.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3505969) and next prime (3505973).

It is not a de Polignac number, because 3505971 - 2¹ = 3505969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3505973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390 + ... + 2676.

It is an arithmetic number, because the mean of its divisors is an integer number (338624).

Almost surely, 2^3505971 is an apocalyptic number.

3505971 is a deficient number, since it is larger than the sum of its proper divisors (1912013).

3505971 is a wasteful number, since it uses less digits than its factorization.

3505971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 3505971 is about 1872.4238302265. The cubic root of 3505971 is about 151.9157398878.

The spelling of 3505971 in words is "three million, five hundred five thousand, nine hundred seventy-one".