3957247 has 8 divisors (see below), whose sum is σ = 4628096. Its totient is φ = 3312792.

The previous prime is 3957229. The next prime is 3957251. The reversal of 3957247 is 7427593.

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

It is not a de Polignac number, because 3957247 - 2¹⁹ = 3432959 is a prime.

It is a d-powerful number, because it can be written as 3¹² + 9⁶ + 5⁹ + 7⁶ + 2⁵ + 4² + 7⁷ .

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957227) 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, 6273 + ... + 6874.

It is an arithmetic number, because the mean of its divisors is an integer number (578512).

Almost surely, 2^3957247 is an apocalyptic number.

3957247 is a deficient number, since it is larger than the sum of its proper divisors (670849).

3957247 is a wasteful number, since it uses less digits than its factorization.

3957247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13197.

The product of its digits is 52920, while the sum is 37.

The square root of 3957247 is about 1989.2830366743. The cubic root of 3957247 is about 158.1725269188.

The spelling of 3957247 in words is "three million, nine hundred fifty-seven thousand, two hundred forty-seven".