8240629 has 2 divisors, whose sum is σ = 8240630. Its totient is φ = 8240628.

The previous prime is 8240627. The next prime is 8240633. The reversal of 8240629 is 9260428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6275025 + 1965604 = 2505^2 + 1402^2 .

It is a cyclic number.

It is not a de Polignac number, because 8240629 - 2¹ = 8240627 is a prime.

Together with 8240627, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8240629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8240621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4120314 + 4120315.

It is an arithmetic number, because the mean of its divisors is an integer number (4120315).

Almost surely, 2^8240629 is an apocalyptic number.

It is an amenable number.

8240629 is a deficient number, since it is larger than the sum of its proper divisors (1).

8240629 is an equidigital number, since it uses as much as digits as its factorization.

8240629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 8240629 is about 2870.6495780572. The cubic root of 8240629 is about 201.9854660654.

The spelling of 8240629 in words is "eight million, two hundred forty thousand, six hundred twenty-nine".