46081891 has 8 divisors (see below), whose sum is σ = 47324160. Its totient is φ = 44855112.

The previous prime is 46081873. The next prime is 46081913. The reversal of 46081891 is 19818064.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 46081891 - 2¹⁵ = 46049123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 46081891.

It is not an unprimeable number, because it can be changed into a prime (46081801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2286 + ... + 9868.

It is an arithmetic number, because the mean of its divisors is an integer number (5915520).

Almost surely, 2^46081891 is an apocalyptic number.

46081891 is a deficient number, since it is larger than the sum of its proper divisors (1242269).

46081891 is a wasteful number, since it uses less digits than its factorization.

46081891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7745.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 46081891 is about 6788.3643832664. The cubic root of 46081891 is about 358.5172837873.

The spelling of 46081891 in words is "forty-six million, eighty-one thousand, eight hundred ninety-one".