3975247 has 2 divisors, whose sum is σ = 3975248. Its totient is φ = 3975246.

The previous prime is 3975239. The next prime is 3975253. The reversal of 3975247 is 7425793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3975247 - 2³ = 3975239 is a prime.

It is a super-2 number, since 2×3975247² = 31605177422018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3975217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987623 + 1987624.

It is an arithmetic number, because the mean of its divisors is an integer number (1987624).

Almost surely, 2^3975247 is an apocalyptic number.

3975247 is a deficient number, since it is larger than the sum of its proper divisors (1).

3975247 is an equidigital number, since it uses as much as digits as its factorization.

3975247 is an evil number, because the sum of its binary digits is even.

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

The square root of 3975247 is about 1993.8021466535. The cubic root of 3975247 is about 158.4119862839.

The spelling of 3975247 in words is "three million, nine hundred seventy-five thousand, two hundred forty-seven".