1624361 has 2 divisors, whose sum is σ = 1624362. Its totient is φ = 1624360.

The previous prime is 1624351. The next prime is 1624373. The reversal of 1624361 is 1634261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 912025 + 712336 = 955^2 + 844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1624361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1624321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812180 + 812181.

It is an arithmetic number, because the mean of its divisors is an integer number (812181).

2^1624361 is an apocalyptic number.

It is an amenable number.

1624361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1624361 is an equidigital number, since it uses as much as digits as its factorization.

1624361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 1624361 is about 1274.5042173332. The cubic root of 1624361 is about 117.5513220799.

The spelling of 1624361 in words is "one million, six hundred twenty-four thousand, three hundred sixty-one".