42745627 has 2 divisors, whose sum is σ = 42745628. Its totient is φ = 42745626.

The previous prime is 42745603. The next prime is 42745663. The reversal of 42745627 is 72654724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42745627 - 2¹⁹ = 42221339 is a prime.

It is not a weakly prime, because it can be changed into another prime (42755627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21372813 + 21372814.

It is an arithmetic number, because the mean of its divisors is an integer number (21372814).

Almost surely, 2^42745627 is an apocalyptic number.

42745627 is a deficient number, since it is larger than the sum of its proper divisors (1).

42745627 is an equidigital number, since it uses as much as digits as its factorization.

42745627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 37.

The square root of 42745627 is about 6538.0139950906. The cubic root of 42745627 is about 349.6476099485.

The spelling of 42745627 in words is "forty-two million, seven hundred forty-five thousand, six hundred twenty-seven".