690242627 has 8 divisors (see below), whose sum is σ = 720867840. Its totient is φ = 659668680.

The previous prime is 690242603. The next prime is 690242639. The reversal of 690242627 is 726242096.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 690242627 - 2¹⁰ = 690241603 is a prime.

It is a super-2 number, since 2×690242627² = 952869768255722258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (690242677) 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, 16124 + ... + 40502.

It is an arithmetic number, because the mean of its divisors is an integer number (90108480).

Almost surely, 2^690242627 is an apocalyptic number.

690242627 is a deficient number, since it is larger than the sum of its proper divisors (30625213).

690242627 is a wasteful number, since it uses less digits than its factorization.

690242627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25633.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 690242627 is about 26272.4689932256. The cubic root of 690242627 is about 883.7591543565.

The spelling of 690242627 in words is "six hundred ninety million, two hundred forty-two thousand, six hundred twenty-seven".