690513 has 8 divisors (see below), whose sum is σ = 924768. Its totient is φ = 458304.

The previous prime is 690511. The next prime is 690533. The reversal of 690513 is 315096.

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

It is not a de Polignac number, because 690513 - 2¹ = 690511 is a prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 690513.

It is not an unprimeable number, because it can be changed into a prime (690511) 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, 670 + ... + 1352.

It is an arithmetic number, because the mean of its divisors is an integer number (115596).

2⁶⁹⁰⁵¹³ is an apocalyptic number.

It is an amenable number.

690513 is a deficient number, since it is larger than the sum of its proper divisors (234255).

690513 is a wasteful number, since it uses less digits than its factorization.

690513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 690513 is about 830.9711186317. The cubic root of 690513 is about 88.3874530898.

The spelling of 690513 in words is "six hundred ninety thousand, five hundred thirteen".