77450045 has 16 divisors (see below), whose sum is σ = 98661888. Its totient is φ = 58164480.

The previous prime is 77450033. The next prime is 77450047. The reversal of 77450045 is 54005477.

It is not a de Polignac number, because 77450045 - 2⁴ = 77450029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77449993 and 77450020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77450047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40460 + ... + 42330.

It is an arithmetic number, because the mean of its divisors is an integer number (6166368).

Almost surely, 2^77450045 is an apocalyptic number.

It is an amenable number.

77450045 is a deficient number, since it is larger than the sum of its proper divisors (21211843).

77450045 is a wasteful number, since it uses less digits than its factorization.

77450045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 77450045 is about 8800.5707201295. The cubic root of 77450045 is about 426.2593236179.

The spelling of 77450045 in words is "seventy-seven million, four hundred fifty thousand, forty-five".