1057623943 has 2 divisors, whose sum is σ = 1057623944. Its totient is φ = 1057623942.

The previous prime is 1057623937. The next prime is 1057623967. The reversal of 1057623943 is 3493267501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1057623943 is a prime.

It is a super-2 number, since 2×1057623943² = 2237136809613734498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1057623896 and 1057623905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1057623913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528811971 + 528811972.

It is an arithmetic number, because the mean of its divisors is an integer number (528811972).

Almost surely, 2^1057623943 is an apocalyptic number.

1057623943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057623943 is an equidigital number, since it uses as much as digits as its factorization.

1057623943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 1057623943 is about 32521.1307152750. The cubic root of 1057623943 is about 1018.8504102769.

The spelling of 1057623943 in words is "one billion, fifty-seven million, six hundred twenty-three thousand, nine hundred forty-three".