3953995 has 8 divisors (see below), whose sum is σ = 4994640. Its totient is φ = 2996640.

The previous prime is 3953993. The next prime is 3954001. The reversal of 3953995 is 5993593.

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

It is not a de Polignac number, because 3953995 - 2¹ = 3953993 is a prime.

It is an Ulam number.

3953995 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3953993) 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, 20716 + ... + 20905.

It is an arithmetic number, because the mean of its divisors is an integer number (624330).

Almost surely, 2^3953995 is an apocalyptic number.

3953995 is a deficient number, since it is larger than the sum of its proper divisors (1040645).

3953995 is a wasteful number, since it uses less digits than its factorization.

3953995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41645.

The product of its digits is 164025, while the sum is 43.

The square root of 3953995 is about 1988.4654887626. The cubic root of 3953995 is about 158.1291871909.

The spelling of 3953995 in words is "three million, nine hundred fifty-three thousand, nine hundred ninety-five".