246631661 has 4 divisors (see below), whose sum is σ = 247044000. Its totient is φ = 246219324.

The previous prime is 246631657. The next prime is 246631663. The reversal of 246631661 is 166136642.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 246631661 - 2² = 246631657 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 (246631663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205271 + ... + 206468.

It is an arithmetic number, because the mean of its divisors is an integer number (61761000).

Almost surely, 2^246631661 is an apocalyptic number.

It is an amenable number.

246631661 is a deficient number, since it is larger than the sum of its proper divisors (412339).

246631661 is an equidigital number, since it uses as much as digits as its factorization.

246631661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412338.

The product of its digits is 31104, while the sum is 35.

The square root of 246631661 is about 15704.5108487976. The cubic root of 246631661 is about 627.1184951055.

The spelling of 246631661 in words is "two hundred forty-six million, six hundred thirty-one thousand, six hundred sixty-one".