1699704431 has 2 divisors, whose sum is σ = 1699704432. Its totient is φ = 1699704430.

The previous prime is 1699704407. The next prime is 1699704437. The reversal of 1699704431 is 1344079961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1699704431 - 2²⁶ = 1632595567 is a prime.

It is a super-2 number, since 2×1699704431² = 5777990305522067522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1699704437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 849852215 + 849852216.

It is an arithmetic number, because the mean of its divisors is an integer number (849852216).

Almost surely, 2^1699704431 is an apocalyptic number.

1699704431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1699704431 is an equidigital number, since it uses as much as digits as its factorization.

1699704431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 1699704431 is about 41227.4717997599. The cubic root of 1699704431 is about 1193.4140199510.

The spelling of 1699704431 in words is "one billion, six hundred ninety-nine million, seven hundred four thousand, four hundred thirty-one".