690027 has 12 divisors (see below), whose sum is σ = 996984. Its totient is φ = 424320.

The previous prime is 689987. The next prime is 690037. The reversal of 690027 is 720096.

It is not a de Polignac number, because 690027 - 2⁶ = 689963 is a prime.

It is a super-2 number, since 2×690027² = 952274521458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 689979 and 690006.

It is not an unprimeable number, because it can be changed into a prime (690037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174 + ... + 1187.

It is an arithmetic number, because the mean of its divisors is an integer number (83082).

2⁶⁹⁰⁰²⁷ is an apocalyptic number.

690027 is a deficient number, since it is larger than the sum of its proper divisors (306957).

690027 is a wasteful number, since it uses less digits than its factorization.

690027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390 (or 1377 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 690027 is about 830.6786382230. The cubic root of 690027 is about 88.3667118033.

The spelling of 690027 in words is "six hundred ninety thousand, twenty-seven".