42650897 has 2 divisors, whose sum is σ = 42650898. Its totient is φ = 42650896.

The previous prime is 42650893. The next prime is 42650903. The reversal of 42650897 is 79805624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33189121 + 9461776 = 5761^2 + 3076^2 .

It is a cyclic number.

It is not a de Polignac number, because 42650897 - 2² = 42650893 is a prime.

It is not a weakly prime, because it can be changed into another prime (42650891) 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 as a sum of consecutive naturals, namely, 21325448 + 21325449.

It is an arithmetic number, because the mean of its divisors is an integer number (21325449).

Almost surely, 2^42650897 is an apocalyptic number.

It is an amenable number.

42650897 is a deficient number, since it is larger than the sum of its proper divisors (1).

42650897 is an equidigital number, since it uses as much as digits as its factorization.

42650897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 42650897 is about 6530.7654222151. The cubic root of 42650897 is about 349.3891303623.

The spelling of 42650897 in words is "forty-two million, six hundred fifty thousand, eight hundred ninety-seven".