45787477 has 4 divisors (see below), whose sum is σ = 48480876. Its totient is φ = 43094080.

The previous prime is 45787451. The next prime is 45787493. The reversal of 45787477 is 77478754.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40056241 + 5731236 = 6329^2 + 2394^2 .

It is a cyclic number.

It is not a de Polignac number, because 45787477 - 2¹¹ = 45785429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45787477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45187477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1346674 + ... + 1346707.

It is an arithmetic number, because the mean of its divisors is an integer number (12120219).

Almost surely, 2^45787477 is an apocalyptic number.

It is an amenable number.

45787477 is a deficient number, since it is larger than the sum of its proper divisors (2693399).

45787477 is a wasteful number, since it uses less digits than its factorization.

45787477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693398.

The product of its digits is 1536640, while the sum is 49.

The square root of 45787477 is about 6766.6444416712. The cubic root of 45787477 is about 357.7521379727.

It can be divided in two parts, 4578747 and 7, that added together give a palindrome (4578754).

The spelling of 45787477 in words is "forty-five million, seven hundred eighty-seven thousand, four hundred seventy-seven".