73447001 has 2 divisors, whose sum is σ = 73447002. Its totient is φ = 73447000.

The previous prime is 73446991. The next prime is 73447007. The reversal of 73447001 is 10074437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50069776 + 23377225 = 7076^2 + 4835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73447001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73447007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36723500 + 36723501.

It is an arithmetic number, because the mean of its divisors is an integer number (36723501).

Almost surely, 2^73447001 is an apocalyptic number.

It is an amenable number.

73447001 is a deficient number, since it is larger than the sum of its proper divisors (1).

73447001 is an equidigital number, since it uses as much as digits as its factorization.

73447001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 73447001 is about 8570.1225778865. The cubic root of 73447001 is about 418.7852295006.

The spelling of 73447001 in words is "seventy-three million, four hundred forty-seven thousand, one".