73673387 has 2 divisors, whose sum is σ = 73673388. Its totient is φ = 73673386.

The previous prime is 73673381. The next prime is 73673389. The reversal of 73673387 is 78337637.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73673387 - 2⁴ = 73673371 is a prime.

Together with 73673389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73673381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36836693 + 36836694.

It is an arithmetic number, because the mean of its divisors is an integer number (36836694).

Almost surely, 2^73673387 is an apocalyptic number.

73673387 is a deficient number, since it is larger than the sum of its proper divisors (1).

73673387 is an equidigital number, since it uses as much as digits as its factorization.

73673387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 44.

The square root of 73673387 is about 8583.3202783072. The cubic root of 73673387 is about 419.2150626683.

The spelling of 73673387 in words is "seventy-three million, six hundred seventy-three thousand, three hundred eighty-seven".