46979821 has 8 divisors (see below), whose sum is σ = 54571904. Its totient is φ = 39607920.

The previous prime is 46979813. The next prime is 46979827. The reversal of 46979821 is 12897964.

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

It is a cyclic number.

It is not a de Polignac number, because 46979821 - 2³ = 46979813 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 (46979827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54585 + ... + 55438.

It is an arithmetic number, because the mean of its divisors is an integer number (6821488).

Almost surely, 2^46979821 is an apocalyptic number.

It is an amenable number.

46979821 is a deficient number, since it is larger than the sum of its proper divisors (7592083).

46979821 is a wasteful number, since it uses less digits than its factorization.

46979821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110091.

The product of its digits is 217728, while the sum is 46.

The square root of 46979821 is about 6854.1827375698. The cubic root of 46979821 is about 360.8309534565.

The spelling of 46979821 in words is "forty-six million, nine hundred seventy-nine thousand, eight hundred twenty-one".