652378 has 4 divisors (see below), whose sum is σ = 978570. Its totient is φ = 326188.

The previous prime is 652373. The next prime is 652381. The reversal of 652378 is 873256.

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

It can be written as a sum of positive squares in only one way, i.e., 644809 + 7569 = 803^2 + 87^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (652373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163093 + ... + 163096.

2⁶⁵²³⁷⁸ is an apocalyptic number.

652378 is a deficient number, since it is larger than the sum of its proper divisors (326192).

652378 is a wasteful number, since it uses less digits than its factorization.

652378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326191.

The product of its digits is 10080, while the sum is 31.

The square root of 652378 is about 807.6992014358. The cubic root of 652378 is about 86.7294187210.

The spelling of 652378 in words is "six hundred fifty-two thousand, three hundred seventy-eight".