690479011 has 2 divisors, whose sum is σ = 690479012. Its totient is φ = 690479010.

The previous prime is 690478973. The next prime is 690479017. The reversal of 690479011 is 110974096.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 690479011 - 2¹³ = 690470819 is a prime.

It is a super-2 number, since 2×690479011² = 953522529263076242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (690479017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345239505 + 345239506.

It is an arithmetic number, because the mean of its divisors is an integer number (345239506).

Almost surely, 2^690479011 is an apocalyptic number.

690479011 is a deficient number, since it is larger than the sum of its proper divisors (1).

690479011 is an equidigital number, since it uses as much as digits as its factorization.

690479011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 690479011 is about 26276.9673097943. The cubic root of 690479011 is about 883.8600283934.

The spelling of 690479011 in words is "six hundred ninety million, four hundred seventy-nine thousand, eleven".