630623701 has 2 divisors, whose sum is σ = 630623702. Its totient is φ = 630623700.

The previous prime is 630623663. The next prime is 630623717. The reversal of 630623701 is 107326036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628705476 + 1918225 = 25074^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 630623701 - 2¹³ = 630615509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 630623701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630623771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315311850 + 315311851.

It is an arithmetic number, because the mean of its divisors is an integer number (315311851).

Almost surely, 2^630623701 is an apocalyptic number.

It is an amenable number.

630623701 is a deficient number, since it is larger than the sum of its proper divisors (1).

630623701 is an equidigital number, since it uses as much as digits as its factorization.

630623701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 630623701 is about 25112.2221438088. Note that the first 3 decimals coincide. The cubic root of 630623701 is about 857.5446918032.

Adding to 630623701 its reverse (107326036), we get a palindrome (737949737).

The spelling of 630623701 in words is "six hundred thirty million, six hundred twenty-three thousand, seven hundred one".