46642891 has 4 divisors (see below), whose sum is σ = 49097800. Its totient is φ = 44187984.

The previous prime is 46642867. The next prime is 46642901. The reversal of 46642891 is 19824664.

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 46642891 - 2⁵ = 46642859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46642801) 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, 1227426 + ... + 1227463.

It is an arithmetic number, because the mean of its divisors is an integer number (12274450).

Almost surely, 2^46642891 is an apocalyptic number.

46642891 is a deficient number, since it is larger than the sum of its proper divisors (2454909).

46642891 is a wasteful number, since it uses less digits than its factorization.

46642891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454908.

The product of its digits is 82944, while the sum is 40.

The square root of 46642891 is about 6829.5600883219. The cubic root of 46642891 is about 359.9662802779.

The spelling of 46642891 in words is "forty-six million, six hundred forty-two thousand, eight hundred ninety-one".