3950945 has 4 divisors (see below), whose sum is σ = 4741140. Its totient is φ = 3160752.

The previous prime is 3950941. The next prime is 3950951. The reversal of 3950945 is 5490593.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1957201 + 1993744 = 1399^2 + 1412^2 .

It is a cyclic number.

It is not a de Polignac number, because 3950945 - 2² = 3950941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3950941) 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, 395090 + ... + 395099.

It is an arithmetic number, because the mean of its divisors is an integer number (1185285).

Almost surely, 2^3950945 is an apocalyptic number.

It is an amenable number.

3950945 is a deficient number, since it is larger than the sum of its proper divisors (790195).

3950945 is an equidigital number, since it uses as much as digits as its factorization.

3950945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790194.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 3950945 is about 1987.6984177687. The cubic root of 3950945 is about 158.0885179367.

The spelling of 3950945 in words is "three million, nine hundred fifty thousand, nine hundred forty-five".