1812795697 has 8 divisors (see below), whose sum is σ = 1921474656. Its totient is φ = 1704343872.

The previous prime is 1812795683. The next prime is 1812795701. The reversal of 1812795697 is 7965972181.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1812795697 - 2¹⁵ = 1812762929 is a prime.

It is a super-3 number, since 3×1812795697³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1812795637) 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, 40203 + ... + 72400.

It is an arithmetic number, because the mean of its divisors is an integer number (240184332).

Almost surely, 2^1812795697 is an apocalyptic number.

1812795697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1812795697 is a deficient number, since it is larger than the sum of its proper divisors (108678959).

1812795697 is a wasteful number, since it uses less digits than its factorization.

1812795697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113567.

The product of its digits is 1905120, while the sum is 55.

The square root of 1812795697 is about 42576.9385583323. The cubic root of 1812795697 is about 1219.3160407532.

The spelling of 1812795697 in words is "one billion, eight hundred twelve million, seven hundred ninety-five thousand, six hundred ninety-seven".