727314421 has 2 divisors, whose sum is σ = 727314422. Its totient is φ = 727314420.

The previous prime is 727314409. The next prime is 727314503. The reversal of 727314421 is 124413727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 380796196 + 346518225 = 19514^2 + 18615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-727314421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727317421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363657210 + 363657211.

It is an arithmetic number, because the mean of its divisors is an integer number (363657211).

Almost surely, 2^727314421 is an apocalyptic number.

It is an amenable number.

727314421 is a deficient number, since it is larger than the sum of its proper divisors (1).

727314421 is an equidigital number, since it uses as much as digits as its factorization.

727314421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 31.

The square root of 727314421 is about 26968.7675098437. The cubic root of 727314421 is about 899.3058107852.

The spelling of 727314421 in words is "seven hundred twenty-seven million, three hundred fourteen thousand, four hundred twenty-one".