652078331 has 4 divisors (see below), whose sum is σ = 652701000. Its totient is φ = 651455664.

The previous prime is 652078319. The next prime is 652078379. The reversal of 652078331 is 133870256.

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 652078331 - 2¹⁴ = 652061947 is a prime.

It is a super-2 number, since 2×652078331² = 850412299519491122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 652078291 and 652078300.

It is not an unprimeable number, because it can be changed into a prime (652071331) 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, 309761 + ... + 311858.

It is an arithmetic number, because the mean of its divisors is an integer number (163175250).

Almost surely, 2^652078331 is an apocalyptic number.

652078331 is a deficient number, since it is larger than the sum of its proper divisors (622669).

652078331 is a wasteful number, since it uses less digits than its factorization.

652078331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622668.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 652078331 is about 25535.8244628992. The cubic root of 652078331 is about 867.1613700458.

The spelling of 652078331 in words is "six hundred fifty-two million, seventy-eight thousand, three hundred thirty-one".