3891456053 has 2 divisors, whose sum is σ = 3891456054. Its totient is φ = 3891456052.

The previous prime is 3891456029. The next prime is 3891456061. The reversal of 3891456053 is 3506541983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3382818244 + 508637809 = 58162^2 + 22553^2 .

It is a cyclic number.

It is not a de Polignac number, because 3891456053 - 2⁶ = 3891455989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3891455995 and 3891456013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3891456013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945728026 + 1945728027.

It is an arithmetic number, because the mean of its divisors is an integer number (1945728027).

Almost surely, 2^3891456053 is an apocalyptic number.

It is an amenable number.

3891456053 is a deficient number, since it is larger than the sum of its proper divisors (1).

3891456053 is an equidigital number, since it uses as much as digits as its factorization.

3891456053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 3891456053 is about 62381.5361545385. The cubic root of 3891456053 is about 1572.9106152682.

The spelling of 3891456053 in words is "three billion, eight hundred ninety-one million, four hundred fifty-six thousand, fifty-three".