46986389 has 2 divisors, whose sum is σ = 46986390. Its totient is φ = 46986388.

The previous prime is 46986371. The next prime is 46986397. The reversal of 46986389 is 98368964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45900625 + 1085764 = 6775^2 + 1042^2 .

It is a cyclic number.

It is not a de Polignac number, because 46986389 - 2¹² = 46982293 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 46986389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46986349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23493194 + 23493195.

It is an arithmetic number, because the mean of its divisors is an integer number (23493195).

Almost surely, 2^46986389 is an apocalyptic number.

It is an amenable number.

46986389 is a deficient number, since it is larger than the sum of its proper divisors (1).

46986389 is an equidigital number, since it uses as much as digits as its factorization.

46986389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 53.

The square root of 46986389 is about 6854.6618443217. The cubic root of 46986389 is about 360.8477679613.

The spelling of 46986389 in words is "forty-six million, nine hundred eighty-six thousand, three hundred eighty-nine".