3971355 has 8 divisors (see below), whose sum is σ = 6354192. Its totient is φ = 2118048.

The previous prime is 3971333. The next prime is 3971377. The reversal of 3971355 is 5531793.

It is an interprime number because it is at equal distance from previous prime (3971333) and next prime (3971377).

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

It is not a de Polignac number, because 3971355 - 2¹⁰ = 3970331 is a prime.

3971355 is a lucky 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, 132364 + ... + 132393.

It is an arithmetic number, because the mean of its divisors is an integer number (794274).

Almost surely, 2^3971355 is an apocalyptic number.

3971355 is a deficient number, since it is larger than the sum of its proper divisors (2382837).

3971355 is a wasteful number, since it uses less digits than its factorization.

3971355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264765.

The product of its digits is 14175, while the sum is 33.

The square root of 3971355 is about 1992.8258830114. The cubic root of 3971355 is about 158.3602711939.

The spelling of 3971355 in words is "three million, nine hundred seventy-one thousand, three hundred fifty-five".