42643077 has 4 divisors (see below), whose sum is σ = 56857440. Its totient is φ = 28428716.

The previous prime is 42643067. The next prime is 42643099. The reversal of 42643077 is 77034624.

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 42643077 - 2¹⁶ = 42577541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42643037) 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, 7107177 + ... + 7107182.

It is an arithmetic number, because the mean of its divisors is an integer number (14214360).

Almost surely, 2^42643077 is an apocalyptic number.

It is an amenable number.

42643077 is a deficient number, since it is larger than the sum of its proper divisors (14214363).

42643077 is a wasteful number, since it uses less digits than its factorization.

42643077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14214362.

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 42643077 is about 6530.1666900624. The cubic root of 42643077 is about 349.3677756727.

The spelling of 42643077 in words is "forty-two million, six hundred forty-three thousand, seventy-seven".