57997403 has 2 divisors, whose sum is σ = 57997404. Its totient is φ = 57997402.

The previous prime is 57997393. The next prime is 57997487. The reversal of 57997403 is 30479975.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57997403 - 2¹⁴ = 57981019 is a prime.

It is not a weakly prime, because it can be changed into another prime (57990403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28998701 + 28998702.

It is an arithmetic number, because the mean of its divisors is an integer number (28998702).

Almost surely, 2^57997403 is an apocalyptic number.

57997403 is a deficient number, since it is larger than the sum of its proper divisors (1).

57997403 is an equidigital number, since it uses as much as digits as its factorization.

57997403 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 44.

The square root of 57997403 is about 7615.6026025522. The cubic root of 57997403 is about 387.0818865819.

The spelling of 57997403 in words is "fifty-seven million, nine hundred ninety-seven thousand, four hundred three".