1602397 has 2 divisors, whose sum is σ = 1602398. Its totient is φ = 1602396.

The previous prime is 1602389. The next prime is 1602401. The reversal of 1602397 is 7932061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1490841 + 111556 = 1221^2 + 334^2 .

It is a cyclic number.

It is not a de Polignac number, because 1602397 - 2³ = 1602389 is a prime.

It is a super-2 number, since 2×1602397² = 5135352291218, which contains 22 as substring.

1602397 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1602317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801198 + 801199.

It is an arithmetic number, because the mean of its divisors is an integer number (801199).

2^1602397 is an apocalyptic number.

It is an amenable number.

1602397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1602397 is an equidigital number, since it uses as much as digits as its factorization.

1602397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1602397 is about 1265.8582069094. The cubic root of 1602397 is about 117.0190876400.

The spelling of 1602397 in words is "one million, six hundred two thousand, three hundred ninety-seven".