699648127 has 2 divisors, whose sum is σ = 699648128. Its totient is φ = 699648126.

The previous prime is 699648121. The next prime is 699648139. The reversal of 699648127 is 721846996.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 699648127 - 2⁷ = 699647999 is a prime.

It is a super-2 number, since 2×699648127² = 979015003229216258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699648121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349824063 + 349824064.

It is an arithmetic number, because the mean of its divisors is an integer number (349824064).

Almost surely, 2^699648127 is an apocalyptic number.

699648127 is a deficient number, since it is larger than the sum of its proper divisors (1).

699648127 is an equidigital number, since it uses as much as digits as its factorization.

699648127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The square root of 699648127 is about 26450.8625001152. The cubic root of 699648127 is about 887.7552008809.

The spelling of 699648127 in words is "six hundred ninety-nine million, six hundred forty-eight thousand, one hundred twenty-seven".