45747977 has 4 divisors (see below), whose sum is σ = 49906896. Its totient is φ = 41589060.

The previous prime is 45747973. The next prime is 45747979. The reversal of 45747977 is 77974754.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45747977 - 2² = 45747973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45747973) 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, 2079443 + ... + 2079464.

It is an arithmetic number, because the mean of its divisors is an integer number (12476724).

Almost surely, 2^45747977 is an apocalyptic number.

It is an amenable number.

45747977 is a deficient number, since it is larger than the sum of its proper divisors (4158919).

45747977 is a wasteful number, since it uses less digits than its factorization.

45747977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158918.

The product of its digits is 1728720, while the sum is 50.

The square root of 45747977 is about 6763.7250831180. The cubic root of 45747977 is about 357.6492330163.

The spelling of 45747977 in words is "forty-five million, seven hundred forty-seven thousand, nine hundred seventy-seven".