1609497 has 8 divisors (see below), whose sum is σ = 2384480. Its totient is φ = 1072980.

The previous prime is 1609493. The next prime is 1609501. The reversal of 1609497 is 7949061.

1609497 is a `hidden beast` number, since 1 + 609 + 49 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (1609493) and next prime (1609501).

It is not a de Polignac number, because 1609497 - 2² = 1609493 is a prime.

It is a Duffinian number.

1609497 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1609493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29779 + ... + 29832.

It is an arithmetic number, because the mean of its divisors is an integer number (298060).

2^1609497 is an apocalyptic number.

It is an amenable number.

1609497 is a deficient number, since it is larger than the sum of its proper divisors (774983).

1609497 is an equidigital number, since it uses as much as digits as its factorization.

1609497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59620 (or 59614 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1609497 is about 1268.6595287941. The cubic root of 1609497 is about 117.1916648120.

The spelling of 1609497 in words is "one million, six hundred nine thousand, four hundred ninety-seven".