42902887 has 2 divisors, whose sum is σ = 42902888. Its totient is φ = 42902886.

The previous prime is 42902837. The next prime is 42902891. The reversal of 42902887 is 78820924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42902887 - 2¹⁵ = 42870119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42902807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21451443 + 21451444.

It is an arithmetic number, because the mean of its divisors is an integer number (21451444).

Almost surely, 2^42902887 is an apocalyptic number.

42902887 is a deficient number, since it is larger than the sum of its proper divisors (1).

42902887 is an equidigital number, since it uses as much as digits as its factorization.

42902887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 42902887 is about 6550.0295419181. The cubic root of 42902887 is about 350.0758665471.

The spelling of 42902887 in words is "forty-two million, nine hundred two thousand, eight hundred eighty-seven".