73029731 has 2 divisors, whose sum is σ = 73029732. Its totient is φ = 73029730.

The previous prime is 73029713. The next prime is 73029779. The reversal of 73029731 is 13792037.

Together with previous prime (73029713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73029731 - 2⁶ = 73029667 is a prime.

It is a super-2 number, since 2×73029731² = 10666683219864722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73029031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36514865 + 36514866.

It is an arithmetic number, because the mean of its divisors is an integer number (36514866).

Almost surely, 2^73029731 is an apocalyptic number.

73029731 is a deficient number, since it is larger than the sum of its proper divisors (1).

73029731 is an equidigital number, since it uses as much as digits as its factorization.

73029731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 73029731 is about 8545.7434433758. The cubic root of 73029731 is about 417.9906498065.

The spelling of 73029731 in words is "seventy-three million, twenty-nine thousand, seven hundred thirty-one".