46664399 has 4 divisors (see below), whose sum is σ = 49120440. Its totient is φ = 44208360.

The previous prime is 46664389. The next prime is 46664411. The reversal of 46664399 is 99346664.

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

It is a cyclic number.

It is not a de Polignac number, because 46664399 - 2⁸ = 46664143 is a prime.

It is a super-2 number, since 2×46664399² = 4355132268062402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46664369) 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, 1227992 + ... + 1228029.

It is an arithmetic number, because the mean of its divisors is an integer number (12280110).

Almost surely, 2^46664399 is an apocalyptic number.

46664399 is a deficient number, since it is larger than the sum of its proper divisors (2456041).

46664399 is a wasteful number, since it uses less digits than its factorization.

46664399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456040.

The product of its digits is 839808, while the sum is 47.

The square root of 46664399 is about 6831.1345324185. The cubic root of 46664399 is about 360.0216010701.

The spelling of 46664399 in words is "forty-six million, six hundred sixty-four thousand, three hundred ninety-nine".