42987633 has 16 divisors (see below), whose sum is σ = 64975680. Its totient is φ = 25061184.

The previous prime is 42987629. The next prime is 42987641. The reversal of 42987633 is 33678924.

It is not a de Polignac number, because 42987633 - 2² = 42987629 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42987233) 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, 28266 + ... + 29747.

It is an arithmetic number, because the mean of its divisors is an integer number (4060980).

Almost surely, 2^42987633 is an apocalyptic number.

It is an amenable number.

42987633 is a deficient number, since it is larger than the sum of its proper divisors (21988047).

42987633 is a wasteful number, since it uses less digits than its factorization.

42987633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58048.

The product of its digits is 217728, while the sum is 42.

The square root of 42987633 is about 6556.4954815816. The cubic root of 42987633 is about 350.3062163657.

The spelling of 42987633 in words is "forty-two million, nine hundred eighty-seven thousand, six hundred thirty-three".