46856561 has 4 divisors (see below), whose sum is σ = 47650800. Its totient is φ = 46062324.

The previous prime is 46856549. The next prime is 46856587. The reversal of 46856561 is 16565864.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 46856561 - 2¹⁰ = 46855537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46856591) 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, 397031 + ... + 397148.

It is an arithmetic number, because the mean of its divisors is an integer number (11912700).

Almost surely, 2^46856561 is an apocalyptic number.

It is an amenable number.

46856561 is a deficient number, since it is larger than the sum of its proper divisors (794239).

46856561 is an equidigital number, since it uses as much as digits as its factorization.

46856561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794238.

The product of its digits is 172800, while the sum is 41.

The square root of 46856561 is about 6845.1852421976. The cubic root of 46856561 is about 360.5151087945.

The spelling of 46856561 in words is "forty-six million, eight hundred fifty-six thousand, five hundred sixty-one".