246860989 has 2 divisors, whose sum is σ = 246860990. Its totient is φ = 246860988.

The previous prime is 246860987. The next prime is 246860993. The reversal of 246860989 is 989068642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216972900 + 29888089 = 14730^2 + 5467^2 .

It is a cyclic number.

It is not a de Polignac number, because 246860989 - 2¹ = 246860987 is a prime.

Together with 246860987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (246860981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123430494 + 123430495.

It is an arithmetic number, because the mean of its divisors is an integer number (123430495).

Almost surely, 2^246860989 is an apocalyptic number.

It is an amenable number.

246860989 is a deficient number, since it is larger than the sum of its proper divisors (1).

246860989 is an equidigital number, since it uses as much as digits as its factorization.

246860989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 246860989 is about 15711.8104940201. The cubic root of 246860989 is about 627.3128081923.

The spelling of 246860989 in words is "two hundred forty-six million, eight hundred sixty thousand, nine hundred eighty-nine".