42623299 has 2 divisors, whose sum is σ = 42623300. Its totient is φ = 42623298.

The previous prime is 42623291. The next prime is 42623351. The reversal of 42623299 is 99232624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42623299 - 2³ = 42623291 is a prime.

It is not a weakly prime, because it can be changed into another prime (42623291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21311649 + 21311650.

It is an arithmetic number, because the mean of its divisors is an integer number (21311650).

Almost surely, 2^42623299 is an apocalyptic number.

42623299 is a deficient number, since it is larger than the sum of its proper divisors (1).

42623299 is an equidigital number, since it uses as much as digits as its factorization.

42623299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 42623299 is about 6528.6521579879. The cubic root of 42623299 is about 349.3137546773.

The spelling of 42623299 in words is "forty-two million, six hundred twenty-three thousand, two hundred ninety-nine".