1057950397 has 8 divisors (see below), whose sum is σ = 1209297600. Its totient is φ = 906656064.

The previous prime is 1057950391. The next prime is 1057950431. The reversal of 1057950397 is 7930597501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1057950397 - 2⁷ = 1057950269 is a prime.

It is a super-2 number, since 2×1057950397² = 2238518085024915218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057950391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49554 + ... + 67612.

It is an arithmetic number, because the mean of its divisors is an integer number (151162200).

Almost surely, 2^1057950397 is an apocalyptic number.

It is an amenable number.

1057950397 is a deficient number, since it is larger than the sum of its proper divisors (151347203).

1057950397 is an equidigital number, since it uses as much as digits as its factorization.

1057950397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26435.

The product of its (nonzero) digits is 297675, while the sum is 46.

The square root of 1057950397 is about 32526.1494339554. The cubic root of 1057950397 is about 1018.9552281182.

The spelling of 1057950397 in words is "one billion, fifty-seven million, nine hundred fifty thousand, three hundred ninety-seven".