206632461 has 20 divisors (see below), whose sum is σ = 321420352. Its totient is φ = 118071576.

The previous prime is 206632451. The next prime is 206632463. The reversal of 206632461 is 164236602.

It is not a de Polignac number, because 206632461 - 2¹⁴ = 206616077 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 (206632463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7141 + ... + 21546.

Almost surely, 2^206632461 is an apocalyptic number.

206632461 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

206632461 is a deficient number, since it is larger than the sum of its proper divisors (114787891).

206632461 is an frugal number, since it uses more digits than its factorization.

206632461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28718 (or 28697 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 206632461 is about 14374.7160319778. The cubic root of 206632461 is about 591.1978546267.

The spelling of 206632461 in words is "two hundred six million, six hundred thirty-two thousand, four hundred sixty-one".