77103445 has 8 divisors (see below), whose sum is σ = 92596536. Its totient is φ = 61634496.

The previous prime is 77103443. The next prime is 77103473. The reversal of 77103445 is 54430177.

It can be written as a sum of positive squares in 4 ways, for example, as 55219761 + 21883684 = 7431^2 + 4678^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77103445 - 2¹ = 77103443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77103443) 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, 1959 + ... + 12571.

It is an arithmetic number, because the mean of its divisors is an integer number (11574567).

Almost surely, 2^77103445 is an apocalyptic number.

It is an amenable number.

77103445 is a deficient number, since it is larger than the sum of its proper divisors (15493091).

77103445 is a wasteful number, since it uses less digits than its factorization.

77103445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12071.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 77103445 is about 8780.8567349661. The cubic root of 77103445 is about 425.6225156419.

The spelling of 77103445 in words is "seventy-seven million, one hundred three thousand, four hundred forty-five".