46909621 has 4 divisors (see below), whose sum is σ = 51174144. Its totient is φ = 42645100.

The previous prime is 46909601. The next prime is 46909633. The reversal of 46909621 is 12690964.

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 a cyclic number.

It is not a de Polignac number, because 46909621 - 2²³ = 38521013 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 (46909601) 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, 2132245 + ... + 2132266.

It is an arithmetic number, because the mean of its divisors is an integer number (12793536).

Almost surely, 2^46909621 is an apocalyptic number.

It is an amenable number.

46909621 is a deficient number, since it is larger than the sum of its proper divisors (4264523).

46909621 is a wasteful number, since it uses less digits than its factorization.

46909621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264522.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 46909621 is about 6849.0598624921. The cubic root of 46909621 is about 360.6511389492.

The spelling of 46909621 in words is "forty-six million, nine hundred nine thousand, six hundred twenty-one".