699648511 has 2 divisors, whose sum is σ = 699648512. Its totient is φ = 699648510.

The previous prime is 699648479. The next prime is 699648541. The reversal of 699648511 is 115846996.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 699648511 - 2⁵ = 699648479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699648541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349824255 + 349824256.

It is an arithmetic number, because the mean of its divisors is an integer number (349824256).

Almost surely, 2^699648511 is an apocalyptic number.

699648511 is a deficient number, since it is larger than the sum of its proper divisors (1).

699648511 is an equidigital number, since it uses as much as digits as its factorization.

699648511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 49.

The square root of 699648511 is about 26450.8697588567. The cubic root of 699648511 is about 887.7553632948.

The spelling of 699648511 in words is "six hundred ninety-nine million, six hundred forty-eight thousand, five hundred eleven".