606538403 has 2 divisors, whose sum is σ = 606538404. Its totient is φ = 606538402.

The previous prime is 606538399. The next prime is 606538409. The reversal of 606538403 is 304835606.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 606538403 - 2² = 606538399 is a prime.

It is equal to p_31648346 and since 606538403 and 31648346 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (606538409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303269201 + 303269202.

It is an arithmetic number, because the mean of its divisors is an integer number (303269202).

Almost surely, 2^606538403 is an apocalyptic number.

606538403 is a deficient number, since it is larger than the sum of its proper divisors (1).

606538403 is an equidigital number, since it uses as much as digits as its factorization.

606538403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 606538403 is about 24628.0003857398. Note that the first 3 decimals coincide. The cubic root of 606538403 is about 846.4853270846.

The spelling of 606538403 in words is "six hundred six million, five hundred thirty-eight thousand, four hundred three".