7621633 has 2 divisors, whose sum is σ = 7621634. Its totient is φ = 7621632.

The previous prime is 7621619. The next prime is 7621639. The reversal of 7621633 is 3361267.

7621633 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7333264 + 288369 = 2708^2 + 537^2 .

It is a cyclic number.

It is not a de Polignac number, because 7621633 - 2²¹ = 5524481 is a prime.

It is not a weakly prime, because it can be changed into another prime (7621639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3810816 + 3810817.

It is an arithmetic number, because the mean of its divisors is an integer number (3810817).

Almost surely, 2^7621633 is an apocalyptic number.

It is an amenable number.

7621633 is a deficient number, since it is larger than the sum of its proper divisors (1).

7621633 is an equidigital number, since it uses as much as digits as its factorization.

7621633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 28.

The square root of 7621633 is about 2760.7305192648. The cubic root of 7621633 is about 196.7958839914.

The spelling of 7621633 in words is "seven million, six hundred twenty-one thousand, six hundred thirty-three".