1054679891 has 2 divisors, whose sum is σ = 1054679892. Its totient is φ = 1054679890.

The previous prime is 1054679863. The next prime is 1054679939. The reversal of 1054679891 is 1989764501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1054679891 - 2⁶ = 1054679827 is a prime.

It is a super-2 number, since 2×1054679891² = 2224699344959543762, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1054679851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527339945 + 527339946.

It is an arithmetic number, because the mean of its divisors is an integer number (527339946).

Almost surely, 2^1054679891 is an apocalyptic number.

1054679891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054679891 is an equidigital number, since it uses as much as digits as its factorization.

1054679891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 50.

The square root of 1054679891 is about 32475.8354934865. The cubic root of 1054679891 is about 1017.9041583353.

The spelling of 1054679891 in words is "one billion, fifty-four million, six hundred seventy-nine thousand, eight hundred ninety-one".