66762433 has 2 divisors, whose sum is σ = 66762434. Its totient is φ = 66762432.

The previous prime is 66762427. The next prime is 66762469. The reversal of 66762433 is 33426766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64112049 + 2650384 = 8007^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 66762433 - 2²⁵ = 33208001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66762392 and 66762401.

It is not a weakly prime, because it can be changed into another prime (66762403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33381216 + 33381217.

It is an arithmetic number, because the mean of its divisors is an integer number (33381217).

Almost surely, 2^66762433 is an apocalyptic number.

It is an amenable number.

66762433 is a deficient number, since it is larger than the sum of its proper divisors (1).

66762433 is an equidigital number, since it uses as much as digits as its factorization.

66762433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 37.

The square root of 66762433 is about 8170.8281709996. The cubic root of 66762433 is about 405.6741968719.

The spelling of 66762433 in words is "sixty-six million, seven hundred sixty-two thousand, four hundred thirty-three".