690097311 has 24 divisors (see below), whose sum is σ = 1044264000. Its totient is φ = 438564672.

The previous prime is 690097301. The next prime is 690097327. The reversal of 690097311 is 113790096.

It is not a de Polignac number, because 690097311 - 2⁵ = 690097279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690097301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3885 + ... + 37353.

It is an arithmetic number, because the mean of its divisors is an integer number (43511000).

Almost surely, 2^690097311 is an apocalyptic number.

690097311 is a deficient number, since it is larger than the sum of its proper divisors (354166689).

690097311 is a wasteful number, since it uses less digits than its factorization.

690097311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33583 (or 33580 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 690097311 is about 26269.7032910537. The cubic root of 690097311 is about 883.6971310651.

The spelling of 690097311 in words is "six hundred ninety million, ninety-seven thousand, three hundred eleven".