42206077 has 4 divisors (see below), whose sum is σ = 42458976. Its totient is φ = 41953180.

The previous prime is 42206071. The next prime is 42206093. The reversal of 42206077 is 77060224.

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 42206077 - 2⁷ = 42205949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42206071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126199 + ... + 126532.

It is an arithmetic number, because the mean of its divisors is an integer number (10614744).

Almost surely, 2^42206077 is an apocalyptic number.

It is an amenable number.

42206077 is a deficient number, since it is larger than the sum of its proper divisors (252899).

42206077 is a wasteful number, since it uses less digits than its factorization.

42206077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252898.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 42206077 is about 6496.6204291154. The cubic root of 42206077 is about 348.1702523831.

The spelling of 42206077 in words is "forty-two million, two hundred six thousand, seventy-seven".