42770527 has 2 divisors, whose sum is σ = 42770528. Its totient is φ = 42770526.

The previous prime is 42770491. The next prime is 42770531. The reversal of 42770527 is 72507724.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42770527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42770492 and 42770501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42770587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21385263 + 21385264.

It is an arithmetic number, because the mean of its divisors is an integer number (21385264).

Almost surely, 2^42770527 is an apocalyptic number.

42770527 is a deficient number, since it is larger than the sum of its proper divisors (1).

42770527 is an equidigital number, since it uses as much as digits as its factorization.

42770527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 42770527 is about 6539.9179658464. The cubic root of 42770527 is about 349.7154885140.

The spelling of 42770527 in words is "forty-two million, seven hundred seventy thousand, five hundred twenty-seven".