73420727 has 2 divisors, whose sum is σ = 73420728. Its totient is φ = 73420726.

The previous prime is 73420667. The next prime is 73420729. The reversal of 73420727 is 72702437.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73420727 - 2⁸ = 73420471 is a prime.

Together with 73420729, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 73420693 and 73420702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73420729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36710363 + 36710364.

It is an arithmetic number, because the mean of its divisors is an integer number (36710364).

Almost surely, 2^73420727 is an apocalyptic number.

73420727 is a deficient number, since it is larger than the sum of its proper divisors (1).

73420727 is an equidigital number, since it uses as much as digits as its factorization.

73420727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 73420727 is about 8568.5895572142. The cubic root of 73420727 is about 418.7352865700.

It can be divided in two parts, 73420 and 727, that added together give a palindrome (74147).

The spelling of 73420727 in words is "seventy-three million, four hundred twenty thousand, seven hundred twenty-seven".