45377779 has 4 divisors (see below), whose sum is σ = 46942560. Its totient is φ = 43813000.

The previous prime is 45377747. The next prime is 45377791. The reversal of 45377779 is 97777354.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97777354 = 2 ⋅48888677.

It is a cyclic number.

It is not a de Polignac number, because 45377779 - 2⁵ = 45377747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45347779) 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, 782347 + ... + 782404.

It is an arithmetic number, because the mean of its divisors is an integer number (11735640).

Almost surely, 2^45377779 is an apocalyptic number.

45377779 is a deficient number, since it is larger than the sum of its proper divisors (1564781).

45377779 is a wasteful number, since it uses less digits than its factorization.

45377779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564780.

The product of its digits is 1296540, while the sum is 49.

The square root of 45377779 is about 6736.3030662226. The cubic root of 45377779 is about 356.6819058715.

The spelling of 45377779 in words is "forty-five million, three hundred seventy-seven thousand, seven hundred seventy-nine".