7214447477 has 2 divisors, whose sum is σ = 7214447478. Its totient is φ = 7214447476.

The previous prime is 7214447413. The next prime is 7214447519. The reversal of 7214447477 is 7747444127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3878922961 + 3335524516 = 62281^2 + 57754^2 .

It is a cyclic number.

It is not a de Polignac number, because 7214447477 - 2⁶ = 7214447413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7214447377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3607223738 + 3607223739.

It is an arithmetic number, because the mean of its divisors is an integer number (3607223739).

Almost surely, 2^7214447477 is an apocalyptic number.

It is an amenable number.

7214447477 is a deficient number, since it is larger than the sum of its proper divisors (1).

7214447477 is an equidigital number, since it uses as much as digits as its factorization.

7214447477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1229312, while the sum is 47.

The square root of 7214447477 is about 84937.9036531983. The cubic root of 7214447477 is about 1932.2694697805.

The spelling of 7214447477 in words is "seven billion, two hundred fourteen million, four hundred forty-seven thousand, four hundred seventy-seven".