690117037 has 4 divisors (see below), whose sum is σ = 690600060. Its totient is φ = 689634016.

The previous prime is 690117017. The next prime is 690117053. The reversal of 690117037 is 730711096.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 264355081 + 425761956 = 16259^2 + 20634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-690117037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 690116993 and 690117011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690117017) 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, 239362 + ... + 242227.

It is an arithmetic number, because the mean of its divisors is an integer number (172650015).

Almost surely, 2^690117037 is an apocalyptic number.

It is an amenable number.

690117037 is a deficient number, since it is larger than the sum of its proper divisors (483023).

690117037 is a wasteful number, since it uses less digits than its factorization.

690117037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483022.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 690117037 is about 26270.0787398896. The cubic root of 690117037 is about 883.7055509615.

The spelling of 690117037 in words is "six hundred ninety million, one hundred seventeen thousand, thirty-seven".