260649471 has 4 divisors (see below), whose sum is σ = 347532632. Its totient is φ = 173766312.

The previous prime is 260649461. The next prime is 260649481. The reversal of 260649471 is 174946062.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (260649461) and next prime (260649481).

It is not a de Polignac number, because 260649471 - 2⁶ = 260649407 is a prime.

It is a super-3 number, since 3×260649471³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260649421) 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, 43441576 + ... + 43441581.

It is an arithmetic number, because the mean of its divisors is an integer number (86883158).

Almost surely, 2^260649471 is an apocalyptic number.

260649471 is a deficient number, since it is larger than the sum of its proper divisors (86883161).

260649471 is an equidigital number, since it uses as much as digits as its factorization.

260649471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86883160.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 260649471 is about 16144.6421762763. The cubic root of 260649471 is about 638.7814304843.

The spelling of 260649471 in words is "two hundred sixty million, six hundred forty-nine thousand, four hundred seventy-one".