1699050401 has 2 divisors, whose sum is σ = 1699050402. Its totient is φ = 1699050400.

The previous prime is 1699050391. The next prime is 1699050403. The reversal of 1699050401 is 1040509961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1461150625 + 237899776 = 38225^2 + 15424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1699050401 - 2³⁰ = 625308577 is a prime.

Together with 1699050403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1699050403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 849525200 + 849525201.

It is an arithmetic number, because the mean of its divisors is an integer number (849525201).

Almost surely, 2^1699050401 is an apocalyptic number.

It is an amenable number.

1699050401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1699050401 is an equidigital number, since it uses as much as digits as its factorization.

1699050401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1699050401 is about 41219.5390682623. The cubic root of 1699050401 is about 1193.2609288817.

The spelling of 1699050401 in words is "one billion, six hundred ninety-nine million, fifty thousand, four hundred one".