690382513 has 4 divisors (see below), whose sum is σ = 720399168. Its totient is φ = 660365860.

The previous prime is 690382507. The next prime is 690382531. The reversal of 690382513 is 315283096.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 690382513 - 2²¹ = 688285361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690382573) 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, 15008293 + ... + 15008338.

It is an arithmetic number, because the mean of its divisors is an integer number (180099792).

Almost surely, 2^690382513 is an apocalyptic number.

It is an amenable number.

690382513 is a deficient number, since it is larger than the sum of its proper divisors (30016655).

690382513 is a wasteful number, since it uses less digits than its factorization.

690382513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30016654.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 690382513 is about 26275.1310748396. The cubic root of 690382513 is about 883.8188518106.

The spelling of 690382513 in words is "six hundred ninety million, three hundred eighty-two thousand, five hundred thirteen".