3955407 has 8 divisors (see below), whose sum is σ = 5584176. Its totient is φ = 2481792.

The previous prime is 3955403. The next prime is 3955417. The reversal of 3955407 is 7045593.

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

It is not a de Polignac number, because 3955407 - 2² = 3955403 is a prime.

3955407 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3955403) 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, 38728 + ... + 38829.

It is an arithmetic number, because the mean of its divisors is an integer number (698022).

Almost surely, 2^3955407 is an apocalyptic number.

3955407 is a deficient number, since it is larger than the sum of its proper divisors (1628769).

3955407 is a wasteful number, since it uses less digits than its factorization.

3955407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77577.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 3955407 is about 1988.8205047213. The cubic root of 3955407 is about 158.1480079734.

The spelling of 3955407 in words is "three million, nine hundred fifty-five thousand, four hundred seven".