73288987 has 2 divisors, whose sum is σ = 73288988. Its totient is φ = 73288986.

The previous prime is 73288967. The next prime is 73288997. The reversal of 73288987 is 78988237.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73288987 is a prime.

It is not a weakly prime, because it can be changed into another prime (73288927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36644493 + 36644494.

It is an arithmetic number, because the mean of its divisors is an integer number (36644494).

Almost surely, 2^73288987 is an apocalyptic number.

73288987 is a deficient number, since it is larger than the sum of its proper divisors (1).

73288987 is an equidigital number, since it uses as much as digits as its factorization.

73288987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 52.

The square root of 73288987 is about 8560.8987261852. The cubic root of 73288987 is about 418.4846887900.

The spelling of 73288987 in words is "seventy-three million, two hundred eighty-eight thousand, nine hundred eighty-seven".