1796778 has 24 divisors (see below), whose sum is σ = 3922308. Its totient is φ = 594432.

The previous prime is 1796777. The next prime is 1796779. The reversal of 1796778 is 8776971.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1796777) and next prime (1796779).

It can be written as a sum of positive squares in 2 ways, for example, as 1238769 + 558009 = 1113^2 + 747^2 .

It is a super-2 number, since 2×1796778² = 6456822362568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1796777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2826 + ... + 3402.

2^1796778 is an apocalyptic number.

1796778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1796778 is an abundant number, since it is smaller than the sum of its proper divisors (2125530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1796778 is a wasteful number, since it uses less digits than its factorization.

1796778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 755 counting only the distinct ones).

The product of its digits is 148176, while the sum is 45.

The square root of 1796778 is about 1340.4394801706. The cubic root of 1796778 is about 121.5714156179.

The spelling of 1796778 in words is "one million, seven hundred ninety-six thousand, seven hundred seventy-eight".