46972809 has 12 divisors (see below), whose sum is σ = 73068996. Its totient is φ = 28906272.

The previous prime is 46972763. The next prime is 46972811. The reversal of 46972809 is 90827964.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14653584 + 32319225 = 3828^2 + 5685^2 .

It is not a de Polignac number, because 46972809 - 2¹⁵ = 46940041 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (46972879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200622 + ... + 200855.

It is an arithmetic number, because the mean of its divisors is an integer number (6089083).

Almost surely, 2^46972809 is an apocalyptic number.

It is an amenable number.

46972809 is a deficient number, since it is larger than the sum of its proper divisors (26096187).

46972809 is a wasteful number, since it uses less digits than its factorization.

46972809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401496 (or 401493 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 46972809 is about 6853.6712060034. The cubic root of 46972809 is about 360.8130005533.

The spelling of 46972809 in words is "forty-six million, nine hundred seventy-two thousand, eight hundred nine".