1916497 has 8 divisors (see below), whose sum is σ = 2126880. Its totient is φ = 1712160.

The previous prime is 1916471. The next prime is 1916531. The reversal of 1916497 is 7946191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1916497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1913497) 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, 828 + ... + 2125.

It is an arithmetic number, because the mean of its divisors is an integer number (265860).

2^1916497 is an apocalyptic number.

It is an amenable number.

1916497 is a deficient number, since it is larger than the sum of its proper divisors (210383).

1916497 is a wasteful number, since it uses less digits than its factorization.

1916497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023.

The product of its digits is 13608, while the sum is 37.

The square root of 1916497 is about 1384.3760327310. The cubic root of 1916497 is about 124.2136664758.

The spelling of 1916497 in words is "one million, nine hundred sixteen thousand, four hundred ninety-seven".