690748 has 6 divisors (see below), whose sum is σ = 1208816. Its totient is φ = 345372.

The previous prime is 690721. The next prime is 690757. The reversal of 690748 is 847096.

It is a congruent number.

It is an unprimeable number.

690748 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86340 + ... + 86347.

2⁶⁹⁰⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

690748 is a deficient number, since it is larger than the sum of its proper divisors (518068).

690748 is a wasteful number, since it uses less digits than its factorization.

690748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172691 (or 172689 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 690748 is about 831.1125074260. The cubic root of 690748 is about 88.3974788222.

The spelling of 690748 in words is "six hundred ninety thousand, seven hundred forty-eight".