46921647 has 4 divisors (see below), whose sum is σ = 62562200. Its totient is φ = 31281096.

The previous prime is 46921619. The next prime is 46921663. The reversal of 46921647 is 74612964.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 46921647 - 2¹⁰ = 46920623 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 (46921247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7820272 + ... + 7820277.

It is an arithmetic number, because the mean of its divisors is an integer number (15640550).

Almost surely, 2^46921647 is an apocalyptic number.

46921647 is a deficient number, since it is larger than the sum of its proper divisors (15640553).

46921647 is a wasteful number, since it uses less digits than its factorization.

46921647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15640552.

The product of its digits is 72576, while the sum is 39.

The square root of 46921647 is about 6849.9377369433. The cubic root of 46921647 is about 360.6819557974.

The spelling of 46921647 in words is "forty-six million, nine hundred twenty-one thousand, six hundred forty-seven".