690013219 has 4 divisors (see below), whose sum is σ = 788586544. Its totient is φ = 591439896.

The previous prime is 690013169. The next prime is 690013237. The reversal of 690013219 is 912310096.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 690013219 - 2¹¹ = 690011171 is a prime.

It is a super-2 number, since 2×690013219² = 952236484789483922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690013249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49286652 + ... + 49286665.

It is an arithmetic number, because the mean of its divisors is an integer number (197146636).

Almost surely, 2^690013219 is an apocalyptic number.

690013219 is a deficient number, since it is larger than the sum of its proper divisors (98573325).

690013219 is an equidigital number, since it uses as much as digits as its factorization.

690013219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98573324.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 690013219 is about 26268.1026912870. The cubic root of 690013219 is about 883.6612352204.

The spelling of 690013219 in words is "six hundred ninety million, thirteen thousand, two hundred nineteen".