57878423 has 2 divisors, whose sum is σ = 57878424. Its totient is φ = 57878422.

The previous prime is 57878407. The next prime is 57878437. The reversal of 57878423 is 32487875.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57878423 - 2⁴ = 57878407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57878923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28939211 + 28939212.

It is an arithmetic number, because the mean of its divisors is an integer number (28939212).

Almost surely, 2^57878423 is an apocalyptic number.

57878423 is a deficient number, since it is larger than the sum of its proper divisors (1).

57878423 is an equidigital number, since it uses as much as digits as its factorization.

57878423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 44.

The square root of 57878423 is about 7607.7869975440. The cubic root of 57878423 is about 386.8170095936.

The spelling of 57878423 in words is "fifty-seven million, eight hundred seventy-eight thousand, four hundred twenty-three".