246406861 has 2 divisors, whose sum is σ = 246406862. Its totient is φ = 246406860.

The previous prime is 246406859. The next prime is 246406921. The reversal of 246406861 is 168604642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148693636 + 97713225 = 12194^2 + 9885^2 .

It is a cyclic number.

It is not a de Polignac number, because 246406861 - 2¹ = 246406859 is a prime.

It is a super-2 number, since 2×246406861² = 121432682295746642, which contains 22 as substring.

Together with 246406859, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 246406861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (246406561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123203430 + 123203431.

It is an arithmetic number, because the mean of its divisors is an integer number (123203431).

Almost surely, 2^246406861 is an apocalyptic number.

It is an amenable number.

246406861 is a deficient number, since it is larger than the sum of its proper divisors (1).

246406861 is an equidigital number, since it uses as much as digits as its factorization.

246406861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 246406861 is about 15697.3520378438. The cubic root of 246406861 is about 626.9279017173.

The spelling of 246406861 in words is "two hundred forty-six million, four hundred six thousand, eight hundred sixty-one".