77770701 has 12 divisors (see below), whose sum is σ = 112920028. Its totient is φ = 51577344.

The previous prime is 77770691. The next prime is 77770709. The reversal of 77770701 is 10707777.

It can be written as a sum of positive squares in 2 ways, for example, as 35390601 + 42380100 = 5949^2 + 6510^2 .

It is not a de Polignac number, because 77770701 - 2¹⁹ = 77246413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77770709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20650 + ... + 24123.

Almost surely, 2^77770701 is an apocalyptic number.

It is an amenable number.

77770701 is a deficient number, since it is larger than the sum of its proper divisors (35149327).

77770701 is a wasteful number, since it uses less digits than its factorization.

77770701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44972 (or 44969 counting only the distinct ones).

The product of its (nonzero) digits is 16807, while the sum is 36.

The square root of 77770701 is about 8818.7698121677. The cubic root of 77770701 is about 426.8467750210.

The spelling of 77770701 in words is "seventy-seven million, seven hundred seventy thousand, seven hundred one".