42447607 has 2 divisors, whose sum is σ = 42447608. Its totient is φ = 42447606.

The previous prime is 42447599. The next prime is 42447617. The reversal of 42447607 is 70674424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42447607 - 2³ = 42447599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42447617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21223803 + 21223804.

It is an arithmetic number, because the mean of its divisors is an integer number (21223804).

Almost surely, 2^42447607 is an apocalyptic number.

42447607 is a deficient number, since it is larger than the sum of its proper divisors (1).

42447607 is an equidigital number, since it uses as much as digits as its factorization.

42447607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 42447607 is about 6515.1828063378. The cubic root of 42447607 is about 348.8331399956.

The spelling of 42447607 in words is "forty-two million, four hundred forty-seven thousand, six hundred seven".