246887261 has 4 divisors (see below), whose sum is σ = 247029852. Its totient is φ = 246744672.

The previous prime is 246887231. The next prime is 246887269. The reversal of 246887261 is 162788642.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162788642 = 2 ⋅81394321.

It can be written as a sum of positive squares in 2 ways, for example, as 123899161 + 122988100 = 11131^2 + 11090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-246887261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (246887269) 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, 68666 + ... + 72171.

It is an arithmetic number, because the mean of its divisors is an integer number (61757463).

Almost surely, 2^246887261 is an apocalyptic number.

It is an amenable number.

246887261 is a deficient number, since it is larger than the sum of its proper divisors (142591).

246887261 is a wasteful number, since it uses less digits than its factorization.

246887261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142590.

The product of its digits is 258048, while the sum is 44.

The square root of 246887261 is about 15712.6465307408. The cubic root of 246887261 is about 627.3350611717.

The spelling of 246887261 in words is "two hundred forty-six million, eight hundred eighty-seven thousand, two hundred sixty-one".