46646309 has 4 divisors (see below), whose sum is σ = 46764204. Its totient is φ = 46528416.

The previous prime is 46646291. The next prime is 46646333. The reversal of 46646309 is 90364664.

It is a happy number.

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 22420225 + 24226084 = 4735^2 + 4922^2 .

It is a cyclic number.

It is not a de Polignac number, because 46646309 - 2¹² = 46642213 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 (46646339) 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, 58352 + ... + 59145.

It is an arithmetic number, because the mean of its divisors is an integer number (11691051).

Almost surely, 2^46646309 is an apocalyptic number.

It is an amenable number.

46646309 is a deficient number, since it is larger than the sum of its proper divisors (117895).

46646309 is a wasteful number, since it uses less digits than its factorization.

46646309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117894.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 46646309 is about 6829.8103194745. The cubic root of 46646309 is about 359.9750728625.

The spelling of 46646309 in words is "forty-six million, six hundred forty-six thousand, three hundred nine".