42877801 has 2 divisors, whose sum is σ = 42877802. Its totient is φ = 42877800.

The previous prime is 42877777. The next prime is 42877811. The reversal of 42877801 is 10877824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34234201 + 8643600 = 5851^2 + 2940^2 .

It is a cyclic number.

It is not a de Polignac number, because 42877801 - 2⁷ = 42877673 is a prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (42877811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21438900 + 21438901.

It is an arithmetic number, because the mean of its divisors is an integer number (21438901).

Almost surely, 2^42877801 is an apocalyptic number.

It is an amenable number.

42877801 is a deficient number, since it is larger than the sum of its proper divisors (1).

42877801 is an equidigital number, since it uses as much as digits as its factorization.

42877801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 42877801 is about 6548.1143087151. The cubic root of 42877801 is about 350.0076216027.

The spelling of 42877801 in words is "forty-two million, eight hundred seventy-seven thousand, eight hundred one".