46209091 has 4 divisors (see below), whose sum is σ = 47336184. Its totient is φ = 45082000.

The previous prime is 46209019. The next prime is 46209109. The reversal of 46209091 is 19090264.

It is a happy number.

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 46209091 - 2¹⁹ = 45684803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46209011) 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, 563485 + ... + 563566.

It is an arithmetic number, because the mean of its divisors is an integer number (11834046).

Almost surely, 2^46209091 is an apocalyptic number.

46209091 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

46209091 is a deficient number, since it is larger than the sum of its proper divisors (1127093).

46209091 is a wasteful number, since it uses less digits than its factorization.

46209091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127092.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 46209091 is about 6797.7268994863. The cubic root of 46209091 is about 358.8468528943.

The spelling of 46209091 in words is "forty-six million, two hundred nine thousand, ninety-one".