42987801 has 16 divisors (see below), whose sum is σ = 58294080. Its totient is φ = 28174080.

The previous prime is 42987787. The next prime is 42987839. The reversal of 42987801 is 10878924.

It is not a de Polignac number, because 42987801 - 2⁹ = 42987289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42987801.

It is not an unprimeable number, because it can be changed into a prime (42987871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61866 + ... + 62556.

It is an arithmetic number, because the mean of its divisors is an integer number (3643380).

Almost surely, 2^42987801 is an apocalyptic number.

It is an amenable number.

42987801 is a deficient number, since it is larger than the sum of its proper divisors (15306279).

42987801 is a wasteful number, since it uses less digits than its factorization.

42987801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 42987801 is about 6556.5082932915. The cubic root of 42987801 is about 350.3066727091.

The spelling of 42987801 in words is "forty-two million, nine hundred eighty-seven thousand, eight hundred one".