77106745 has 16 divisors (see below), whose sum is σ = 94525200. Its totient is φ = 60364800.

The previous prime is 77106719. The next prime is 77106767. The reversal of 77106745 is 54760177.

It can be written as a sum of positive squares in 8 ways, for example, as 784 + 77105961 = 28^2 + 8781^2 .

It is not a de Polignac number, because 77106745 - 2¹¹ = 77104697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72981 + ... + 74029.

It is an arithmetic number, because the mean of its divisors is an integer number (5907825).

Almost surely, 2^77106745 is an apocalyptic number.

It is an amenable number.

77106745 is a deficient number, since it is larger than the sum of its proper divisors (17418455).

77106745 is a wasteful number, since it uses less digits than its factorization.

77106745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 77106745 is about 8781.0446417269. The cubic root of 77106745 is about 425.6285877193.

The spelling of 77106745 in words is "seventy-seven million, one hundred six thousand, seven hundred forty-five".