3893431 has 2 divisors, whose sum is σ = 3893432. Its totient is φ = 3893430.

The previous prime is 3893419. The next prime is 3893471. The reversal of 3893431 is 1343983.

It is a weak prime.

It is an emirp because it is prime and its reverse (1343983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3893431 - 2¹¹ = 3891383 is a prime.

It is a super-2 number, since 2×3893431² = 30317609903522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3893393 and 3893402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3893471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1946715 + 1946716.

It is an arithmetic number, because the mean of its divisors is an integer number (1946716).

Almost surely, 2^3893431 is an apocalyptic number.

3893431 is a deficient number, since it is larger than the sum of its proper divisors (1).

3893431 is an equidigital number, since it uses as much as digits as its factorization.

3893431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 31.

The square root of 3893431 is about 1973.1778936528. The cubic root of 3893431 is about 157.3176658766.

The spelling of 3893431 in words is "three million, eight hundred ninety-three thousand, four hundred thirty-one".