46878165 has 12 divisors (see below), whose sum is σ = 81255564. Its totient is φ = 25001664.

The previous prime is 46878137. The next prime is 46878173. The reversal of 46878165 is 56187864.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5391684 + 41486481 = 2322^2 + 6441^2 .

It is not a de Polignac number, because 46878165 - 2¹⁵ = 46845397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1041737 = 46878165 / (4 + 6 + 8 + 7 + 8 + 1 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 46878165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 520824 + ... + 520913.

It is an arithmetic number, because the mean of its divisors is an integer number (6771297).

Almost surely, 2^46878165 is an apocalyptic number.

46878165 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

46878165 is a deficient number, since it is larger than the sum of its proper divisors (34377399).

46878165 is a wasteful number, since it uses less digits than its factorization.

46878165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041748 (or 1041745 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 46878165 is about 6846.7631038324. The cubic root of 46878165 is about 360.5705074518.

The spelling of 46878165 in words is "forty-six million, eight hundred seventy-eight thousand, one hundred sixty-five".