999650461 has 2 divisors, whose sum is σ = 999650462. Its totient is φ = 999650460.

The previous prime is 999650441. The next prime is 999650467. The reversal of 999650461 is 164056999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 923856025 + 75794436 = 30395^2 + 8706^2 .

It is a cyclic number.

It is not a de Polignac number, because 999650461 - 2⁹ = 999649949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999650467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499825230 + 499825231.

It is an arithmetic number, because the mean of its divisors is an integer number (499825231).

Almost surely, 2^999650461 is an apocalyptic number.

It is an amenable number.

999650461 is a deficient number, since it is larger than the sum of its proper divisors (1).

999650461 is an equidigital number, since it uses as much as digits as its factorization.

999650461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 999650461 is about 31617.2494217951. The cubic root of 999650461 is about 999.8834734221.

The spelling of 999650461 in words is "nine hundred ninety-nine million, six hundred fifty thousand, four hundred sixty-one".