45477999 has 24 divisors (see below), whose sum is σ = 76677120. Its totient is φ = 25432848.

The previous prime is 45477997. The next prime is 45478087. The reversal of 45477999 is 99977454.

45477999 is a `hidden beast` number, since 4 + 547 + 7 + 9 + 99 = 666.

It is not a de Polignac number, because 45477999 - 2¹ = 45477997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45477997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4719 + ... + 10640.

It is an arithmetic number, because the mean of its divisors is an integer number (3194880).

Almost surely, 2^45477999 is an apocalyptic number.

45477999 is a deficient number, since it is larger than the sum of its proper divisors (31199121).

45477999 is a wasteful number, since it uses less digits than its factorization.

45477999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15419 (or 15416 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 45477999 is about 6743.7377618054. The cubic root of 45477999 is about 356.9442984441.

The spelling of 45477999 in words is "forty-five million, four hundred seventy-seven thousand, nine hundred ninety-nine".