263674 has 4 divisors (see below), whose sum is σ = 395514. Its totient is φ = 131836.

The previous prime is 263657. The next prime is 263677. The reversal of 263674 is 476362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 476362 = 2 ⋅238181.

It can be written as a sum of positive squares in only one way, i.e., 255025 + 8649 = 505^2 + 93^2 .

It is a d-powerful number, because it can be written as 2³ + 6³ + 6⁴ + 3 + 7 + 4⁹ .

It is not an unprimeable number, because it can be changed into a prime (263677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65917 + ... + 65920.

2²⁶³⁶⁷⁴ is an apocalyptic number.

263674 is a deficient number, since it is larger than the sum of its proper divisors (131840).

263674 is a wasteful number, since it uses less digits than its factorization.

263674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131839.

The product of its digits is 6048, while the sum is 28.

The square root of 263674 is about 513.4919668310. The cubic root of 263674 is about 64.1242702642.

The spelling of 263674 in words is "two hundred sixty-three thousand, six hundred seventy-four".