260979766 has 8 divisors (see below), whose sum is σ = 391667760. Its totient is φ = 130423848.

The previous prime is 260979721. The next prime is 260979769. The reversal of 260979766 is 667979062.

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

It is a super-2 number, since 2×260979766² = 136220876522829512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260979769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27921 + ... + 36076.

It is an arithmetic number, because the mean of its divisors is an integer number (48958470).

Almost surely, 2^260979766 is an apocalyptic number.

260979766 is a deficient number, since it is larger than the sum of its proper divisors (130687994).

260979766 is a wasteful number, since it uses less digits than its factorization.

260979766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66038.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 260979766 is about 16154.8681826872. The cubic root of 260979766 is about 639.0511378603.

The spelling of 260979766 in words is "two hundred sixty million, nine hundred seventy-nine thousand, seven hundred sixty-six".