3961045 has 8 divisors (see below), whose sum is σ = 5185440. Its totient is φ = 2880720.

The previous prime is 3961039. The next prime is 3961049. The reversal of 3961045 is 5401693.

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

It is not a de Polignac number, because 3961045 - 2¹⁹ = 3436757 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35955 + ... + 36064.

It is an arithmetic number, because the mean of its divisors is an integer number (648180).

Almost surely, 2^3961045 is an apocalyptic number.

It is an amenable number.

3961045 is a deficient number, since it is larger than the sum of its proper divisors (1224395).

3961045 is a wasteful number, since it uses less digits than its factorization.

3961045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72035.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3961045 is about 1990.2374230227. The cubic root of 3961045 is about 158.2231131952.

It can be divided in two parts, 396 and 1045, that added together give a palindrome (1441).

The spelling of 3961045 in words is "three million, nine hundred sixty-one thousand, forty-five".