1416657797 has 2 divisors, whose sum is σ = 1416657798. Its totient is φ = 1416657796.

The previous prime is 1416657793. The next prime is 1416657811. The reversal of 1416657797 is 7977566141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 895266241 + 521391556 = 29921^2 + 22834^2 .

It is a cyclic number.

It is not a de Polignac number, because 1416657797 - 2² = 1416657793 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1416657793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 708328898 + 708328899.

It is an arithmetic number, because the mean of its divisors is an integer number (708328899).

Almost surely, 2^1416657797 is an apocalyptic number.

It is an amenable number.

1416657797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1416657797 is an equidigital number, since it uses as much as digits as its factorization.

1416657797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 53.

The square root of 1416657797 is about 37638.5148086372. The cubic root of 1416657797 is about 1123.1083395527.

The spelling of 1416657797 in words is "one billion, four hundred sixteen million, six hundred fifty-seven thousand, seven hundred ninety-seven".