46721405 has 4 divisors (see below), whose sum is σ = 56065692. Its totient is φ = 37377120.

The previous prime is 46721377. The next prime is 46721413. The reversal of 46721405 is 50412764.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13980121 + 32741284 = 3739^2 + 5722^2 .

It is not a de Polignac number, because 46721405 - 2⁶ = 46721341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4672136 + ... + 4672145.

It is an arithmetic number, because the mean of its divisors is an integer number (14016423).

Almost surely, 2^46721405 is an apocalyptic number.

It is an amenable number.

46721405 is a deficient number, since it is larger than the sum of its proper divisors (9344287).

46721405 is an equidigital number, since it uses as much as digits as its factorization.

46721405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9344286.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 46721405 is about 6835.3057722387. The cubic root of 46721405 is about 360.1681441898.

The spelling of 46721405 in words is "forty-six million, seven hundred twenty-one thousand, four hundred five".