1679497 has 4 divisors (see below), whose sum is σ = 1682640. Its totient is φ = 1676356.

The previous prime is 1679479. The next prime is 1679501. The reversal of 1679497 is 7949761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7949761 = 17 ⋅467633.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1679497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1679417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547 + ... + 1912.

It is an arithmetic number, because the mean of its divisors is an integer number (420660).

2^1679497 is an apocalyptic number.

It is an amenable number.

1679497 is a deficient number, since it is larger than the sum of its proper divisors (3143).

1679497 is an equidigital number, since it uses as much as digits as its factorization.

1679497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142.

The product of its digits is 95256, while the sum is 43.

The square root of 1679497 is about 1295.9540886930. The cubic root of 1679497 is about 118.8665736141.

The spelling of 1679497 in words is "one million, six hundred seventy-nine thousand, four hundred ninety-seven".