260787957 has 16 divisors (see below), whose sum is σ = 350334720. Its totient is φ = 172555712.

The previous prime is 260787953. The next prime is 260787979. The reversal of 260787957 is 759787062.

It is a cyclic number.

It is not a de Polignac number, because 260787957 - 2² = 260787953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260787953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399043 + ... + 399695.

It is an arithmetic number, because the mean of its divisors is an integer number (21895920).

Almost surely, 2^260787957 is an apocalyptic number.

It is an amenable number.

260787957 is a deficient number, since it is larger than the sum of its proper divisors (89546763).

260787957 is a wasteful number, since it uses less digits than its factorization.

260787957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452.

The product of its (nonzero) digits is 1481760, while the sum is 51.

The square root of 260787957 is about 16148.9305218643. The cubic root of 260787957 is about 638.8945410442.

The spelling of 260787957 in words is "two hundred sixty million, seven hundred eighty-seven thousand, nine hundred fifty-seven".