690963719 has 2 divisors, whose sum is σ = 690963720. Its totient is φ = 690963718.

The previous prime is 690963667. The next prime is 690963731. The reversal of 690963719 is 917369096.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 690963719 - 2¹⁶ = 690898183 is a prime.

It is a super-2 number, since 2×690963719² = 954861721948621922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (690963919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345481859 + 345481860.

It is an arithmetic number, because the mean of its divisors is an integer number (345481860).

Almost surely, 2^690963719 is an apocalyptic number.

690963719 is a deficient number, since it is larger than the sum of its proper divisors (1).

690963719 is an equidigital number, since it uses as much as digits as its factorization.

690963719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 690963719 is about 26286.1887499881. The cubic root of 690963719 is about 884.0667997370.

The spelling of 690963719 in words is "six hundred ninety million, nine hundred sixty-three thousand, seven hundred nineteen".