3391971 has 32 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 1900800.

The previous prime is 3391967. The next prime is 3391987. The reversal of 3391971 is 1791933.

It is not a de Polignac number, because 3391971 - 2² = 3391967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

3391971 is a lucky number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3391991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31065 + ... + 31173.

It is an arithmetic number, because the mean of its divisors is an integer number (166320).

Almost surely, 2^3391971 is an apocalyptic number.

3391971 is a deficient number, since it is larger than the sum of its proper divisors (1930269).

3391971 is a wasteful number, since it uses less digits than its factorization.

3391971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187.

The product of its digits is 5103, while the sum is 33.

The square root of 3391971 is about 1841.7304363017. The cubic root of 3391971 is about 150.2510019747.

The spelling of 3391971 in words is "three million, three hundred ninety-one thousand, nine hundred seventy-one".