3948215 has 8 divisors (see below), whose sum is σ = 4760448. Its totient is φ = 3143520.

The previous prime is 3948187. The next prime is 3948223. The reversal of 3948215 is 5128493.

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

It is not a de Polignac number, because 3948215 - 2⁶ = 3948151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656 + ... + 2885.

It is an arithmetic number, because the mean of its divisors is an integer number (595056).

Almost surely, 2^3948215 is an apocalyptic number.

3948215 is a deficient number, since it is larger than the sum of its proper divisors (812233).

3948215 is a wasteful number, since it uses less digits than its factorization.

3948215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3769.

The product of its digits is 8640, while the sum is 32.

The square root of 3948215 is about 1987.0115752053. The cubic root of 3948215 is about 158.0520978654.

The spelling of 3948215 in words is "three million, nine hundred forty-eight thousand, two hundred fifteen".