46509861 has 4 divisors (see below), whose sum is σ = 62013152. Its totient is φ = 31006572.

The previous prime is 46509857. The next prime is 46509863. The reversal of 46509861 is 16890564.

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 not a de Polignac number, because 46509861 - 2² = 46509857 is a prime.

It is a super-3 number, since 3×46509861³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46509863) 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, 7751641 + ... + 7751646.

It is an arithmetic number, because the mean of its divisors is an integer number (15503288).

Almost surely, 2^46509861 is an apocalyptic number.

It is an amenable number.

46509861 is a deficient number, since it is larger than the sum of its proper divisors (15503291).

46509861 is a wasteful number, since it uses less digits than its factorization.

46509861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15503290.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 46509861 is about 6819.8138537646. The cubic root of 46509861 is about 359.6237349585.

The spelling of 46509861 in words is "forty-six million, five hundred nine thousand, eight hundred sixty-one".