633747061 has 2 divisors, whose sum is σ = 633747062. Its totient is φ = 633747060.

The previous prime is 633747047. The next prime is 633747073. The reversal of 633747061 is 160747336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 440370225 + 193376836 = 20985^2 + 13906^2 .

It is a cyclic number.

It is not a de Polignac number, because 633747061 - 2⁷ = 633746933 is a prime.

It is a super-2 number, since 2×633747061² = 803270674652275442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 633747061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (633747001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316873530 + 316873531.

It is an arithmetic number, because the mean of its divisors is an integer number (316873531).

Almost surely, 2^633747061 is an apocalyptic number.

It is an amenable number.

633747061 is a deficient number, since it is larger than the sum of its proper divisors (1).

633747061 is an equidigital number, since it uses as much as digits as its factorization.

633747061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 633747061 is about 25174.3333774700. Note that the first 4 decimals coincide. The cubic root of 633747061 is about 858.9581131550.

The spelling of 633747061 in words is "six hundred thirty-three million, seven hundred forty-seven thousand, sixty-one".