652076690 has 8 divisors (see below), whose sum is σ = 1173738060. Its totient is φ = 260830672.

The previous prime is 652076683. The next prime is 652076693. The reversal of 652076690 is 96670256.

It can be written as a sum of positive squares in 2 ways, for example, as 642571801 + 9504889 = 25349^2 + 3083^2 .

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

It is a super-2 number, since 2×652076690² = 850408019282712200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (652076693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32603825 + ... + 32603844.

Almost surely, 2^652076690 is an apocalyptic number.

652076690 is a deficient number, since it is larger than the sum of its proper divisors (521661370).

652076690 is a wasteful number, since it uses less digits than its factorization.

652076690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65207676.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 652076690 is about 25535.7923315491. The cubic root of 652076690 is about 867.1606426214.

The spelling of 652076690 in words is "six hundred fifty-two million, seventy-six thousand, six hundred ninety".