46486821 has 4 divisors (see below), whose sum is σ = 61982432. Its totient is φ = 30991212.

The previous prime is 46486813. The next prime is 46486831. The reversal of 46486821 is 12868464.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 46486821 - 2³ = 46486813 is a prime.

It is a super-2 number, since 2×46486821² = 4322049053372082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 46486821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46486801) 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, 7747801 + ... + 7747806.

It is an arithmetic number, because the mean of its divisors is an integer number (15495608).

Almost surely, 2^46486821 is an apocalyptic number.

It is an amenable number.

46486821 is a deficient number, since it is larger than the sum of its proper divisors (15495611).

46486821 is a wasteful number, since it uses less digits than its factorization.

46486821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15495610.

The product of its digits is 73728, while the sum is 39.

The square root of 46486821 is about 6818.1244488496. The cubic root of 46486821 is about 359.5643418230.

The spelling of 46486821 in words is "forty-six million, four hundred eighty-six thousand, eight hundred twenty-one".