42863651 has 4 divisors (see below), whose sum is σ = 44727312. Its totient is φ = 40999992.

The previous prime is 42863633. The next prime is 42863657. The reversal of 42863651 is 15636824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42863651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42863657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931796 + ... + 931841.

It is an arithmetic number, because the mean of its divisors is an integer number (11181828).

Almost surely, 2^42863651 is an apocalyptic number.

42863651 is a deficient number, since it is larger than the sum of its proper divisors (1863661).

42863651 is a wasteful number, since it uses less digits than its factorization.

42863651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863660.

The product of its digits is 34560, while the sum is 35.

The square root of 42863651 is about 6547.0337558317. The cubic root of 42863651 is about 349.9691156422.

The spelling of 42863651 in words is "forty-two million, eight hundred sixty-three thousand, six hundred fifty-one".