1616497 has 2 divisors, whose sum is σ = 1616498. Its totient is φ = 1616496.

The previous prime is 1616491. The next prime is 1616519. The reversal of 1616497 is 7946161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1062961 + 553536 = 1031^2 + 744^2 .

It is a cyclic number.

It is not a de Polignac number, because 1616497 - 2¹⁹ = 1092209 is a prime.

It is a super-2 number, since 2×1616497² = 5226125102018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1616491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808248 + 808249.

It is an arithmetic number, because the mean of its divisors is an integer number (808249).

2^1616497 is an apocalyptic number.

It is an amenable number.

1616497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616497 is an equidigital number, since it uses as much as digits as its factorization.

1616497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 1616497 is about 1271.4153530613. The cubic root of 1616497 is about 117.3613151741.

It can be divided in two parts, 16164 and 97, that added together give a palindrome (16261).

The spelling of 1616497 in words is "one million, six hundred sixteen thousand, four hundred ninety-seven".