45477986 has 8 divisors (see below), whose sum is σ = 68336940. Its totient is φ = 22699008.

The previous prime is 45477973. The next prime is 45477989. The reversal of 45477986 is 68977454.

45477986 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 2 ways, for example, as 39450961 + 6027025 = 6281^2 + 2455^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45477989) 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 3 ways as a sum of consecutive naturals, for example, 18551 + ... + 20858.

Almost surely, 2^45477986 is an apocalyptic number.

45477986 is a deficient number, since it is larger than the sum of its proper divisors (22858954).

45477986 is a wasteful number, since it uses less digits than its factorization.

45477986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39988.

The product of its digits is 1693440, while the sum is 50.

The square root of 45477986 is about 6743.7367979482. The cubic root of 45477986 is about 356.9442644330.

The spelling of 45477986 in words is "forty-five million, four hundred seventy-seven thousand, nine hundred eighty-six".