73002473 has 2 divisors, whose sum is σ = 73002474. Its totient is φ = 73002472.

The previous prime is 73002469. The next prime is 73002493. The reversal of 73002473 is 37420037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53173264 + 19829209 = 7292^2 + 4453^2 .

It is a cyclic number.

It is not a de Polignac number, because 73002473 - 2² = 73002469 is a prime.

It is a super-2 number, since 2×73002473² = 10658722128231458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73002493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36501236 + 36501237.

It is an arithmetic number, because the mean of its divisors is an integer number (36501237).

Almost surely, 2^73002473 is an apocalyptic number.

It is an amenable number.

73002473 is a deficient number, since it is larger than the sum of its proper divisors (1).

73002473 is an equidigital number, since it uses as much as digits as its factorization.

73002473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 73002473 is about 8544.1484654704. The cubic root of 73002473 is about 417.9386389939.

The spelling of 73002473 in words is "seventy-three million, two thousand, four hundred seventy-three".