606420757 has 2 divisors, whose sum is σ = 606420758. Its totient is φ = 606420756.

The previous prime is 606420751. The next prime is 606420767. The reversal of 606420757 is 757024606.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 534950641 + 71470116 = 23129^2 + 8454^2 .

It is a cyclic number.

It is not a de Polignac number, because 606420757 - 2⁷ = 606420629 is a prime.

It is a super-2 number, since 2×606420757² = 735492269040906098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (606420751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303210378 + 303210379.

It is an arithmetic number, because the mean of its divisors is an integer number (303210379).

Almost surely, 2^606420757 is an apocalyptic number.

It is an amenable number.

606420757 is a deficient number, since it is larger than the sum of its proper divisors (1).

606420757 is an equidigital number, since it uses as much as digits as its factorization.

606420757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 606420757 is about 24625.6118096587. The cubic root of 606420757 is about 846.4305946051.

The spelling of 606420757 in words is "six hundred six million, four hundred twenty thousand, seven hundred fifty-seven".