42923659 has 2 divisors, whose sum is σ = 42923660. Its totient is φ = 42923658.

The previous prime is 42923651. The next prime is 42923677. The reversal of 42923659 is 95632924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42923659 - 2³ = 42923651 is a prime.

It is not a weakly prime, because it can be changed into another prime (42923651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21461829 + 21461830.

It is an arithmetic number, because the mean of its divisors is an integer number (21461830).

Almost surely, 2^42923659 is an apocalyptic number.

42923659 is a deficient number, since it is larger than the sum of its proper divisors (1).

42923659 is an equidigital number, since it uses as much as digits as its factorization.

42923659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 42923659 is about 6551.6149917406. The cubic root of 42923659 is about 350.1323553846.

The spelling of 42923659 in words is "forty-two million, nine hundred twenty-three thousand, six hundred fifty-nine".