46547989 has 4 divisors (see below), whose sum is σ = 49286124. Its totient is φ = 43809856.

The previous prime is 46547981. The next prime is 46547993. The reversal of 46547989 is 98974564.

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 43125489 + 3422500 = 6567^2 + 1850^2 .

It is a cyclic number.

It is not a de Polignac number, because 46547989 - 2³ = 46547981 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 (46547981) 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, 1369042 + ... + 1369075.

It is an arithmetic number, because the mean of its divisors is an integer number (12321531).

Almost surely, 2^46547989 is an apocalyptic number.

It is an amenable number.

46547989 is a deficient number, since it is larger than the sum of its proper divisors (2738135).

46547989 is a wasteful number, since it uses less digits than its factorization.

46547989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738134.

The product of its digits is 2177280, while the sum is 52.

The square root of 46547989 is about 6822.6086653127. The cubic root of 46547989 is about 359.7219792755.

The spelling of 46547989 in words is "forty-six million, five hundred forty-seven thousand, nine hundred eighty-nine".