46778289 has 8 divisors (see below), whose sum is σ = 62516832. Its totient is φ = 31112640.

The previous prime is 46778273. The next prime is 46778317. The reversal of 46778289 is 98287764.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 46778289 - 2⁴ = 46778273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (46773289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16707 + ... + 19304.

It is an arithmetic number, because the mean of its divisors is an integer number (7814604).

Almost surely, 2^46778289 is an apocalyptic number.

It is an amenable number.

46778289 is a deficient number, since it is larger than the sum of its proper divisors (15738543).

46778289 is a wasteful number, since it uses less digits than its factorization.

46778289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36447.

The product of its digits is 1354752, while the sum is 51.

The square root of 46778289 is about 6839.4655492955. The cubic root of 46778289 is about 360.3142549185.

The spelling of 46778289 in words is "forty-six million, seven hundred seventy-eight thousand, two hundred eighty-nine".