42986501 has 4 divisors (see below), whose sum is σ = 43388352. Its totient is φ = 42584652.

The previous prime is 42986483. The next prime is 42986513. The reversal of 42986501 is 10568924.

42986501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42986501 - 2¹⁰ = 42985477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42986201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200765 + ... + 200978.

It is an arithmetic number, because the mean of its divisors is an integer number (10847088).

Almost surely, 2^42986501 is an apocalyptic number.

It is an amenable number.

42986501 is a deficient number, since it is larger than the sum of its proper divisors (401851).

42986501 is a wasteful number, since it uses less digits than its factorization.

42986501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401850.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 42986501 is about 6556.4091544076. The cubic root of 42986501 is about 350.3031414494.

The spelling of 42986501 in words is "forty-two million, nine hundred eighty-six thousand, five hundred one".