46999991 has 4 divisors (see below), whose sum is σ = 47299512. Its totient is φ = 46700472.

The previous prime is 46999987. The next prime is 47000011. The reversal of 46999991 is 19999964.

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 46999991 - 2² = 46999987 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 (46999091) 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, 149525 + ... + 149838.

It is an arithmetic number, because the mean of its divisors is an integer number (11824878).

Almost surely, 2^46999991 is an apocalyptic number.

46999991 is a deficient number, since it is larger than the sum of its proper divisors (299521).

46999991 is a wasteful number, since it uses less digits than its factorization.

46999991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299520.

The product of its digits is 1417176, while the sum is 56.

The square root of 46999991 is about 6855.6539440086. The cubic root of 46999991 is about 360.8825849788.

The spelling of 46999991 in words is "forty-six million, nine hundred ninety-nine thousand, nine hundred ninety-one".