424276691 has 2 divisors, whose sum is σ = 424276692. Its totient is φ = 424276690.

The previous prime is 424276681. The next prime is 424276703. The reversal of 424276691 is 196672424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 424276691 - 2⁶ = 424276627 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (424276621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212138345 + 212138346.

It is an arithmetic number, because the mean of its divisors is an integer number (212138346).

Almost surely, 2^424276691 is an apocalyptic number.

424276691 is a deficient number, since it is larger than the sum of its proper divisors (1).

424276691 is an equidigital number, since it uses as much as digits as its factorization.

424276691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 424276691 is about 20597.9778376422. The cubic root of 424276691 is about 751.4205320492.

The spelling of 424276691 in words is "four hundred twenty-four million, two hundred seventy-six thousand, six hundred ninety-one".