45771986 has 16 divisors (see below), whose sum is σ = 74088000. Its totient is φ = 21083088.

The previous prime is 45771983. The next prime is 45771989. The reversal of 45771986 is 68917754.

It is an interprime number because it is at equal distance from previous prime (45771983) and next prime (45771989).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45771986.

It is not an unprimeable number, because it can be changed into a prime (45771983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14105 + ... + 17043.

It is an arithmetic number, because the mean of its divisors is an integer number (4630500).

Almost surely, 2^45771986 is an apocalyptic number.

45771986 is a deficient number, since it is larger than the sum of its proper divisors (28316014).

45771986 is a wasteful number, since it uses less digits than its factorization.

45771986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553.

The product of its digits is 423360, while the sum is 47.

The square root of 45771986 is about 6765.4996859064. The cubic root of 45771986 is about 357.7117880500.

The spelling of 45771986 in words is "forty-five million, seven hundred seventy-one thousand, nine hundred eighty-six".