42912077 has 8 divisors (see below), whose sum is σ = 46287360. Its totient is φ = 39547440.

The previous prime is 42912073. The next prime is 42912137. The reversal of 42912077 is 77021924.

42912077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42912077 - 2² = 42912073 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 (42912071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7052 + ... + 11642.

It is an arithmetic number, because the mean of its divisors is an integer number (5785920).

Almost surely, 2^42912077 is an apocalyptic number.

It is an amenable number.

42912077 is a deficient number, since it is larger than the sum of its proper divisors (3375283).

42912077 is a wasteful number, since it uses less digits than its factorization.

42912077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 42912077 is about 6550.7310279083. The cubic root of 42912077 is about 350.1008607277.

The spelling of 42912077 in words is "forty-two million, nine hundred twelve thousand, seventy-seven".