77773045 has 48 divisors (see below), whose sum is σ = 117013248. Its totient is φ = 49297920.

The previous prime is 77773027. The next prime is 77773049. The reversal of 77773045 is 54037777.

It is not a de Polignac number, because 77773045 - 2¹⁷ = 77641973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77772989 and 77773007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77773049) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 295584 + ... + 295846.

It is an arithmetic number, because the mean of its divisors is an integer number (2437776).

Almost surely, 2^77773045 is an apocalyptic number.

It is an amenable number.

77773045 is a deficient number, since it is larger than the sum of its proper divisors (39240203).

77773045 is a wasteful number, since it uses less digits than its factorization.

77773045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 144060, while the sum is 40.

The square root of 77773045 is about 8818.9027095212. The cubic root of 77773045 is about 426.8510633489.

The spelling of 77773045 in words is "seventy-seven million, seven hundred seventy-three thousand, forty-five".