46409989 has 4 divisors (see below), whose sum is σ = 48852640. Its totient is φ = 43967340.

The previous prime is 46409977. The next prime is 46409999. The reversal of 46409989 is 98990464.

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 46409989 - 2⁷ = 46409861 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 (46409999) 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, 1221297 + ... + 1221334.

It is an arithmetic number, because the mean of its divisors is an integer number (12213160).

Almost surely, 2^46409989 is an apocalyptic number.

It is an amenable number.

46409989 is a deficient number, since it is larger than the sum of its proper divisors (2442651).

46409989 is a wasteful number, since it uses less digits than its factorization.

46409989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442650.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 46409989 is about 6812.4877247596. The cubic root of 46409989 is about 359.3661402630.

The spelling of 46409989 in words is "forty-six million, four hundred nine thousand, nine hundred eighty-nine".