42658747 has 4 divisors (see below), whose sum is σ = 42680176. Its totient is φ = 42637320.

The previous prime is 42658741. The next prime is 42658753. The reversal of 42658747 is 74785624.

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

It is an interprime number because it is at equal distance from previous prime (42658741) and next prime (42658753).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42658747 is a prime.

It is a super-2 number, since 2×42658747² = 3639537391220018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42658741) 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, 7383 + ... + 11824.

It is an arithmetic number, because the mean of its divisors is an integer number (10670044).

Almost surely, 2^42658747 is an apocalyptic number.

42658747 is a deficient number, since it is larger than the sum of its proper divisors (21429).

42658747 is a wasteful number, since it uses less digits than its factorization.

42658747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21428.

The product of its digits is 376320, while the sum is 43.

The square root of 42658747 is about 6531.3663960920. The cubic root of 42658747 is about 349.4105643502.

The spelling of 42658747 in words is "forty-two million, six hundred fifty-eight thousand, seven hundred forty-seven".