73673987 has 2 divisors, whose sum is σ = 73673988. Its totient is φ = 73673986.

The previous prime is 73673959. The next prime is 73674017. The reversal of 73673987 is 78937637.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73673987 - 2⁶ = 73673923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73673917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36836993 + 36836994.

It is an arithmetic number, because the mean of its divisors is an integer number (36836994).

Almost surely, 2^73673987 is an apocalyptic number.

73673987 is a deficient number, since it is larger than the sum of its proper divisors (1).

73673987 is an equidigital number, since it uses as much as digits as its factorization.

73673987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1333584, while the sum is 50.

The square root of 73673987 is about 8583.3552297455. The cubic root of 73673987 is about 419.2162007019.

The spelling of 73673987 in words is "seventy-three million, six hundred seventy-three thousand, nine hundred eighty-seven".