42599629 has 2 divisors, whose sum is σ = 42599630. Its totient is φ = 42599628.

The previous prime is 42599621. The next prime is 42599633. The reversal of 42599629 is 92699524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27405225 + 15194404 = 5235^2 + 3898^2 .

It is a cyclic number.

It is not a de Polignac number, because 42599629 - 2³ = 42599621 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42599621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21299814 + 21299815.

It is an arithmetic number, because the mean of its divisors is an integer number (21299815).

Almost surely, 2^42599629 is an apocalyptic number.

It is an amenable number.

42599629 is a deficient number, since it is larger than the sum of its proper divisors (1).

42599629 is an equidigital number, since it uses as much as digits as its factorization.

42599629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 46.

The square root of 42599629 is about 6526.8391277861. The cubic root of 42599629 is about 349.2490812258.

The spelling of 42599629 in words is "forty-two million, five hundred ninety-nine thousand, six hundred twenty-nine".