73666377 has 12 divisors (see below), whose sum is σ = 106949700. Its totient is φ = 48860448.

The previous prime is 73666361. The next prime is 73666387. The reversal of 73666377 is 77366637.

It can be written as a sum of positive squares in 2 ways, for example, as 38489616 + 35176761 = 6204^2 + 5931^2 .

It is not a de Polignac number, because 73666377 - 2⁴ = 73666361 is a prime.

It is a super-2 number, since 2×73666377² = 10853470200612258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73666337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19002 + ... + 22547.

It is an arithmetic number, because the mean of its divisors is an integer number (8912475).

Almost surely, 2^73666377 is an apocalyptic number.

It is an amenable number.

73666377 is a deficient number, since it is larger than the sum of its proper divisors (33283323).

73666377 is a wasteful number, since it uses less digits than its factorization.

73666377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41752 (or 41749 counting only the distinct ones).

The product of its digits is 666792, while the sum is 45.

The square root of 73666377 is about 8582.9119184575. The cubic root of 73666377 is about 419.2017661854.

The spelling of 73666377 in words is "seventy-three million, six hundred sixty-six thousand, three hundred seventy-seven".