3893557 has 2 divisors, whose sum is σ = 3893558. Its totient is φ = 3893556.

The previous prime is 3893543. The next prime is 3893563. The reversal of 3893557 is 7553983.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2232036 + 1661521 = 1494^2 + 1289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3893557 is a prime.

It is a super-2 number, since 2×3893557² = 30319572224498, which contains 22 as substring.

It is a Chen prime.

3893557 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3893567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1946778 + 1946779.

It is an arithmetic number, because the mean of its divisors is an integer number (1946779).

Almost surely, 2^3893557 is an apocalyptic number.

It is an amenable number.

3893557 is a deficient number, since it is larger than the sum of its proper divisors (1).

3893557 is an equidigital number, since it uses as much as digits as its factorization.

3893557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 40.

The square root of 3893557 is about 1973.2098215851. The cubic root of 3893557 is about 157.3193629070.

The spelling of 3893557 in words is "three million, eight hundred ninety-three thousand, five hundred fifty-seven".