261614893 has 8 divisors (see below), whose sum is σ = 264485088. Its totient is φ = 258752784.

The previous prime is 261614879. The next prime is 261614911. The reversal of 261614893 is 398416162.

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

It is a cyclic number.

It is not a de Polignac number, because 261614893 - 2²⁵ = 228060461 is a prime.

It is a super-3 number, since 3×261614893³ (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 (261614863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81130 + ... + 84292.

It is an arithmetic number, because the mean of its divisors is an integer number (33060636).

Almost surely, 2^261614893 is an apocalyptic number.

It is an amenable number.

261614893 is a deficient number, since it is larger than the sum of its proper divisors (2870195).

261614893 is a wasteful number, since it uses less digits than its factorization.

261614893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043.

The product of its digits is 62208, while the sum is 40.

The square root of 261614893 is about 16174.5136866615. The cubic root of 261614893 is about 639.5691215984.

The spelling of 261614893 in words is "two hundred sixty-one million, six hundred fourteen thousand, eight hundred ninety-three".