57878437 has 2 divisors, whose sum is σ = 57878438. Its totient is φ = 57878436.

The previous prime is 57878423. The next prime is 57878441. The reversal of 57878437 is 73487875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37933281 + 19945156 = 6159^2 + 4466^2 .

It is a cyclic number.

It is not a de Polignac number, because 57878437 - 2¹⁹ = 57354149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57878407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28939218 + 28939219.

It is an arithmetic number, because the mean of its divisors is an integer number (28939219).

Almost surely, 2^57878437 is an apocalyptic number.

It is an amenable number.

57878437 is a deficient number, since it is larger than the sum of its proper divisors (1).

57878437 is an equidigital number, since it uses as much as digits as its factorization.

57878437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1317120, while the sum is 49.

The square root of 57878437 is about 7607.7879176539. The cubic root of 57878437 is about 386.8170407822.

The spelling of 57878437 in words is "fifty-seven million, eight hundred seventy-eight thousand, four hundred thirty-seven".