261294697 has 8 divisors (see below), whose sum is σ = 276497280. Its totient is φ = 246412320.

The previous prime is 261294689. The next prime is 261294701. The reversal of 261294697 is 796492162.

261294697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 261294697 - 2³ = 261294689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261294647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78372 + ... + 81637.

It is an arithmetic number, because the mean of its divisors is an integer number (34562160).

Almost surely, 2^261294697 is an apocalyptic number.

It is an amenable number.

261294697 is a deficient number, since it is larger than the sum of its proper divisors (15202583).

261294697 is a wasteful number, since it uses less digits than its factorization.

261294697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160103.

The product of its digits is 326592, while the sum is 46.

The square root of 261294697 is about 16164.6124914889. The cubic root of 261294697 is about 639.3080876834.

The spelling of 261294697 in words is "two hundred sixty-one million, two hundred ninety-four thousand, six hundred ninety-seven".