1057672393 has 2 divisors, whose sum is σ = 1057672394. Its totient is φ = 1057672392.

The previous prime is 1057672379. The next prime is 1057672397. The reversal of 1057672393 is 3932767501.

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., 902221369 + 155451024 = 30037^2 + 12468^2 .

It is a cyclic number.

It is not a de Polignac number, because 1057672393 - 2²⁹ = 520801481 is a prime.

It is a super-2 number, since 2×1057672393² = 2237341781828692898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1057672397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528836196 + 528836197.

It is an arithmetic number, because the mean of its divisors is an integer number (528836197).

Almost surely, 2^1057672393 is an apocalyptic number.

It is an amenable number.

1057672393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057672393 is an equidigital number, since it uses as much as digits as its factorization.

1057672393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 43.

The square root of 1057672393 is about 32521.8756070433. The cubic root of 1057672393 is about 1018.8659679645.

The spelling of 1057672393 in words is "one billion, fifty-seven million, six hundred seventy-two thousand, three hundred ninety-three".