46991618 has 8 divisors (see below), whose sum is σ = 71146512. Its totient is φ = 23276116.

The previous prime is 46991611. The next prime is 46991639. The reversal of 46991618 is 81619964.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (46991611) 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, 109580 + ... + 110007.

It is an arithmetic number, because the mean of its divisors is an integer number (8893314).

Almost surely, 2^46991618 is an apocalyptic number.

46991618 is a deficient number, since it is larger than the sum of its proper divisors (24154894).

46991618 is a wasteful number, since it uses less digits than its factorization.

46991618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219696.

The product of its digits is 93312, while the sum is 44.

The square root of 46991618 is about 6855.0432529635. The cubic root of 46991618 is about 360.8611534191.

The spelling of 46991618 in words is "forty-six million, nine hundred ninety-one thousand, six hundred eighteen".