1808097 has 8 divisors (see below), whose sum is σ = 2537760. Its totient is φ = 1141920.

The previous prime is 1808089. The next prime is 1808117. The reversal of 1808097 is 7908081.

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

It is not a de Polignac number, because 1808097 - 2³ = 1808089 is a prime.

It is a super-2 number, since 2×1808097² = 6538429522818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1808017) 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, 15804 + ... + 15917.

It is an arithmetic number, because the mean of its divisors is an integer number (317220).

2^1808097 is an apocalyptic number.

It is an amenable number.

1808097 is a deficient number, since it is larger than the sum of its proper divisors (729663).

1808097 is a wasteful number, since it uses less digits than its factorization.

1808097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31743.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 1808097 is about 1344.6549743336. The cubic root of 1808097 is about 121.8261655764.

The spelling of 1808097 in words is "one million, eight hundred eight thousand, ninety-seven".