77633053 has 4 divisors (see below), whose sum is σ = 78905788. Its totient is φ = 76360320.

The previous prime is 77633011. The next prime is 77633113. The reversal of 77633053 is 35033677.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44662489 + 32970564 = 6683^2 + 5742^2 .

It is a cyclic number.

It is not a de Polignac number, because 77633053 - 2¹⁷ = 77501981 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 (77633453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636276 + ... + 636397.

It is an arithmetic number, because the mean of its divisors is an integer number (19726447).

Almost surely, 2^77633053 is an apocalyptic number.

It is an amenable number.

77633053 is a deficient number, since it is larger than the sum of its proper divisors (1272735).

77633053 is a wasteful number, since it uses less digits than its factorization.

77633053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272734.

The product of its (nonzero) digits is 39690, while the sum is 34.

The square root of 77633053 is about 8810.9620927570. The cubic root of 77633053 is about 426.5947979400.

It can be divided in two parts, 7763 and 3053, that added together give a square (10816 = 104²).

The spelling of 77633053 in words is "seventy-seven million, six hundred thirty-three thousand, fifty-three".