65733973 has 2 divisors, whose sum is σ = 65733974. Its totient is φ = 65733972.

The previous prime is 65733961. The next prime is 65733989. The reversal of 65733973 is 37933756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42289009 + 23444964 = 6503^2 + 4842^2 .

It is a cyclic number.

It is not a de Polignac number, because 65733973 - 2²⁵ = 32179541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65731973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32866986 + 32866987.

It is an arithmetic number, because the mean of its divisors is an integer number (32866987).

Almost surely, 2^65733973 is an apocalyptic number.

It is an amenable number.

65733973 is a deficient number, since it is larger than the sum of its proper divisors (1).

65733973 is an equidigital number, since it uses as much as digits as its factorization.

65733973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 357210, while the sum is 43.

The square root of 65733973 is about 8107.6490427250. The cubic root of 65733973 is about 403.5803017356.

The spelling of 65733973 in words is "sixty-five million, seven hundred thirty-three thousand, nine hundred seventy-three".