1699995361 has 3 divisors (see below), whose sum is σ = 1700036593. Its totient is φ = 1699954130.

The previous prime is 1699995347. The next prime is 1699995383. The reversal of 1699995361 is 1635999961.

The square root of 1699995361 is 41231.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1635999961 = 523 ⋅3128107.

It is not a de Polignac number, because 1699995361 - 2¹³ = 1699987169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1699995296 and 1699995305.

It is not an unprimeable number, because it can be changed into a prime (1699995301) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20616 + ... + 61846.

Almost surely, 2^1699995361 is an apocalyptic number.

1699995361 is the 41231-st square number.

1699995361 is the 20616-th centered octagonal number.

It is an amenable number.

1699995361 is a deficient number, since it is larger than the sum of its proper divisors (41232).

1699995361 is an frugal number, since it uses more digits than its factorization.

1699995361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82462 (or 41231 counting only the distinct ones).

The product of its digits is 3542940, while the sum is 58.

The cubic root of 1699995361 is about 1193.4821063247.

The spelling of 1699995361 in words is "one billion, six hundred ninety-nine million, nine hundred ninety-five thousand, three hundred sixty-one".