42770927 has 4 divisors (see below), whose sum is σ = 43926936. Its totient is φ = 41614920.

The previous prime is 42770921. The next prime is 42770953. The reversal of 42770927 is 72907724.

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

It is a cyclic number.

It is not a de Polignac number, because 42770927 - 2⁸ = 42770671 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 (42770921) 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, 577949 + ... + 578022.

It is an arithmetic number, because the mean of its divisors is an integer number (10981734).

Almost surely, 2^42770927 is an apocalyptic number.

42770927 is a deficient number, since it is larger than the sum of its proper divisors (1156009).

42770927 is a wasteful number, since it uses less digits than its factorization.

42770927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156008.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 42770927 is about 6539.9485471982. The cubic root of 42770927 is about 349.7165787177.

The spelling of 42770927 in words is "forty-two million, seven hundred seventy thousand, nine hundred twenty-seven".