42724607 has 2 divisors, whose sum is σ = 42724608. Its totient is φ = 42724606.

The previous prime is 42724601. The next prime is 42724609. The reversal of 42724607 is 70642724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42724607 - 2¹⁸ = 42462463 is a prime.

Together with 42724609, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42724601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21362303 + 21362304.

It is an arithmetic number, because the mean of its divisors is an integer number (21362304).

Almost surely, 2^42724607 is an apocalyptic number.

42724607 is a deficient number, since it is larger than the sum of its proper divisors (1).

42724607 is an equidigital number, since it uses as much as digits as its factorization.

42724607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 42724607 is about 6536.4062756227. The cubic root of 42724607 is about 349.5902879227.

The spelling of 42724607 in words is "forty-two million, seven hundred twenty-four thousand, six hundred seven".