64337633 has 2 divisors, whose sum is σ = 64337634. Its totient is φ = 64337632.

The previous prime is 64337599. The next prime is 64337653. The reversal of 64337633 is 33673346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59706529 + 4631104 = 7727^2 + 2152^2 .

It is a cyclic number.

It is not a de Polignac number, because 64337633 - 2¹² = 64333537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64337593 and 64337602.

It is not a weakly prime, because it can be changed into another prime (64337653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32168816 + 32168817.

It is an arithmetic number, because the mean of its divisors is an integer number (32168817).

Almost surely, 2^64337633 is an apocalyptic number.

It is an amenable number.

64337633 is a deficient number, since it is larger than the sum of its proper divisors (1).

64337633 is an equidigital number, since it uses as much as digits as its factorization.

64337633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 35.

The square root of 64337633 is about 8021.0743046053. The cubic root of 64337633 is about 400.7021687597.

The spelling of 64337633 in words is "sixty-four million, three hundred thirty-seven thousand, six hundred thirty-three".