475678749 has 16 divisors (see below), whose sum is σ = 780601472. Its totient is φ = 250907328.

The previous prime is 475678747. The next prime is 475678789. The reversal of 475678749 is 947876574.

It is not a de Polignac number, because 475678749 - 2¹ = 475678747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475678747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 870934 + ... + 871479.

It is an arithmetic number, because the mean of its divisors is an integer number (48787592).

Almost surely, 2^475678749 is an apocalyptic number.

It is an amenable number.

475678749 is a deficient number, since it is larger than the sum of its proper divisors (304922723).

475678749 is a wasteful number, since it uses less digits than its factorization.

475678749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742436.

The product of its digits is 11854080, while the sum is 57.

The square root of 475678749 is about 21810.0607289388. The cubic root of 475678749 is about 780.6168411197.

The spelling of 475678749 in words is "four hundred seventy-five million, six hundred seventy-eight thousand, seven hundred forty-nine".