690486611 has 4 divisors (see below), whose sum is σ = 720507792. Its totient is φ = 660465432.

The previous prime is 690486539. The next prime is 690486631. The reversal of 690486611 is 116684096.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 690486611 - 2¹⁴ = 690470227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690486631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15010556 + ... + 15010601.

It is an arithmetic number, because the mean of its divisors is an integer number (180126948).

Almost surely, 2^690486611 is an apocalyptic number.

690486611 is a deficient number, since it is larger than the sum of its proper divisors (30021181).

690486611 is a wasteful number, since it uses less digits than its factorization.

690486611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30021180.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 690486611 is about 26277.1119227361. Note that the first 3 decimals coincide. The cubic root of 690486611 is about 883.8632712202.

The spelling of 690486611 in words is "six hundred ninety million, four hundred eighty-six thousand, six hundred eleven".