42630347 has 2 divisors, whose sum is σ = 42630348. Its totient is φ = 42630346.

The previous prime is 42630307. The next prime is 42630359. The reversal of 42630347 is 74303624.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42630347 - 2¹⁶ = 42564811 is a prime.

It is a super-3 number, since 3×42630347³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is equal to p_2583560 and since 42630347 and 2583560 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42630307) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21315173 + 21315174.

It is an arithmetic number, because the mean of its divisors is an integer number (21315174).

Almost surely, 2^42630347 is an apocalyptic number.

42630347 is a deficient number, since it is larger than the sum of its proper divisors (1).

42630347 is an equidigital number, since it uses as much as digits as its factorization.

42630347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 42630347 is about 6529.1919101831. The cubic root of 42630347 is about 349.3330072748. Note that the first 3 decimals are identical.

The spelling of 42630347 in words is "forty-two million, six hundred thirty thousand, three hundred forty-seven".