46641991 has 6 divisors (see below), whose sum is σ = 51267776. Its totient is φ = 42401700.

The previous prime is 46641989. The next prime is 46641997. The reversal of 46641991 is 19914664.

It is not a de Polignac number, because 46641991 - 2¹ = 46641989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46641997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192615 + ... + 192856.

Almost surely, 2^46641991 is an apocalyptic number.

46641991 is a deficient number, since it is larger than the sum of its proper divisors (4625785).

46641991 is a wasteful number, since it uses less digits than its factorization.

46641991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385493 (or 385482 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 46641991 is about 6829.4941979622. The cubic root of 46641991 is about 359.9639650145.

The spelling of 46641991 in words is "forty-six million, six hundred forty-one thousand, nine hundred ninety-one".