690050 has 24 divisors (see below), whose sum is σ = 1321716. Its totient is φ = 267840.

The previous prime is 690037. The next prime is 690059. The reversal of 690050 is 50096.

It can be written as a sum of positive squares in 6 ways, for example, as 418609 + 271441 = 647^2 + 521^2 .

It is not an unprimeable number, because it can be changed into a prime (690059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1664 + ... + 2036.

2⁶⁹⁰⁰⁵⁰ is an apocalyptic number.

690050 is a deficient number, since it is larger than the sum of its proper divisors (631666).

690050 is a wasteful number, since it uses less digits than its factorization.

690050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 690050 is about 830.6924822099. The cubic root of 690050 is about 88.3676936063.

The spelling of 690050 in words is "six hundred ninety thousand, fifty".