46478457 has 6 divisors (see below), whose sum is σ = 67135562. Its totient is φ = 30985632.

The previous prime is 46478449. The next prime is 46478473. The reversal of 46478457 is 75487464.

46478457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 46294416 + 184041 = 6804^2 + 429^2 .

It is not a de Polignac number, because 46478457 - 2³ = 46478449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46478417) 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 5 ways as a sum of consecutive naturals, for example, 2582128 + ... + 2582145.

Almost surely, 2^46478457 is an apocalyptic number.

It is an amenable number.

46478457 is a deficient number, since it is larger than the sum of its proper divisors (20657105).

46478457 is a wasteful number, since it uses less digits than its factorization.

46478457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5164279 (or 5164276 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 46478457 is about 6817.5110560966. The cubic root of 46478457 is about 359.5427760224.

The spelling of 46478457 in words is "forty-six million, four hundred seventy-eight thousand, four hundred fifty-seven".