42763521 has 8 divisors (see below), whose sum is σ = 57659040. Its totient is φ = 28188512.

The previous prime is 42763519. The next prime is 42763531. The reversal of 42763521 is 12536724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42763521 - 2¹ = 42763519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42763531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79815 + ... + 80348.

It is an arithmetic number, because the mean of its divisors is an integer number (7207380).

Almost surely, 2^42763521 is an apocalyptic number.

It is an amenable number.

42763521 is a deficient number, since it is larger than the sum of its proper divisors (14895519).

42763521 is a wasteful number, since it uses less digits than its factorization.

42763521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160255.

The product of its digits is 10080, while the sum is 30.

The square root of 42763521 is about 6539.3823102798. The cubic root of 42763521 is about 349.6963924941.

The spelling of 42763521 in words is "forty-two million, seven hundred sixty-three thousand, five hundred twenty-one".