73700047 has 2 divisors, whose sum is σ = 73700048. Its totient is φ = 73700046.

The previous prime is 73700021. The next prime is 73700057. The reversal of 73700047 is 74000737.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73700047 - 2¹¹ = 73697999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73699988 and 73700024.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73700057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36850023 + 36850024.

It is an arithmetic number, because the mean of its divisors is an integer number (36850024).

Almost surely, 2^73700047 is an apocalyptic number.

73700047 is a deficient number, since it is larger than the sum of its proper divisors (1).

73700047 is an equidigital number, since it uses as much as digits as its factorization.

73700047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4116, while the sum is 28.

The square root of 73700047 is about 8584.8731499073. The cubic root of 73700047 is about 419.2656233307.

The spelling of 73700047 in words is "seventy-three million, seven hundred thousand, forty-seven".