260775986 has 4 divisors (see below), whose sum is σ = 391163982. Its totient is φ = 130387992.

The previous prime is 260775979. The next prime is 260775989. The reversal of 260775986 is 689577062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 256992961 + 3783025 = 16031^2 + 1945^2 .

It is a super-2 number, since 2×260775986² = 136008229748544392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (260775989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65193995 + ... + 65193998.

Almost surely, 2^260775986 is an apocalyptic number.

260775986 is a deficient number, since it is larger than the sum of its proper divisors (130387996).

260775986 is a wasteful number, since it uses less digits than its factorization.

260775986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130387995.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 260775986 is about 16148.5598738711. The cubic root of 260775986 is about 638.8847651280.

The spelling of 260775986 in words is "two hundred sixty million, seven hundred seventy-five thousand, nine hundred eighty-six".