690041771 has 8 divisors (see below), whose sum is σ = 701535984. Its totient is φ = 678602880.

The previous prime is 690041719. The next prime is 690041789. The reversal of 690041771 is 177140096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 690041771 - 2⁶ = 690041707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690041371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11711 + ... + 38951.

It is an arithmetic number, because the mean of its divisors is an integer number (87691998).

Almost surely, 2^690041771 is an apocalyptic number.

690041771 is a deficient number, since it is larger than the sum of its proper divisors (11494213).

690041771 is a wasteful number, since it uses less digits than its factorization.

690041771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27661.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 690041771 is about 26268.6461584909. The cubic root of 690041771 is about 883.6734233674.

The spelling of 690041771 in words is "six hundred ninety million, forty-one thousand, seven hundred seventy-one".