3957487 has 2 divisors, whose sum is σ = 3957488. Its totient is φ = 3957486.

The previous prime is 3957479. The next prime is 3957493. The reversal of 3957487 is 7847593.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3957487 - 2³ = 3957479 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 9³ + 5⁵ + 7 + 4⁹ + 8⁷ + 7 .

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3957287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1978743 + 1978744.

It is an arithmetic number, because the mean of its divisors is an integer number (1978744).

Almost surely, 2^3957487 is an apocalyptic number.

3957487 is a deficient number, since it is larger than the sum of its proper divisors (1).

3957487 is an equidigital number, since it uses as much as digits as its factorization.

3957487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 3957487 is about 1989.3433590007. The cubic root of 3957487 is about 158.1757244817.

It can be divided in two parts, 3957 and 487, that added together give a palindrome (4444).

The spelling of 3957487 in words is "three million, nine hundred fifty-seven thousand, four hundred eighty-seven".