73730047 has 2 divisors, whose sum is σ = 73730048. Its totient is φ = 73730046.

The previous prime is 73730023. The next prime is 73730077. The reversal of 73730047 is 74003737.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73730047 - 2¹⁵ = 73697279 is a prime.

It is a super-2 number, since 2×73730047² = 10872239661244418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73730017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36865023 + 36865024.

It is an arithmetic number, because the mean of its divisors is an integer number (36865024).

Almost surely, 2^73730047 is an apocalyptic number.

73730047 is a deficient number, since it is larger than the sum of its proper divisors (1).

73730047 is an equidigital number, since it uses as much as digits as its factorization.

73730047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12348, while the sum is 31.

The square root of 73730047 is about 8586.6202314997. The cubic root of 73730047 is about 419.3225037216.

The spelling of 73730047 in words is "seventy-three million, seven hundred thirty thousand, forty-seven".