73770077 has 4 divisors (see below), whose sum is σ = 74780700. Its totient is φ = 72759456.

The previous prime is 73770071. The next prime is 73770083. The reversal of 73770077 is 77007737.

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

It is an interprime number because it is at equal distance from previous prime (73770071) and next prime (73770083).

It can be written as a sum of positive squares in 2 ways, for example, as 51998521 + 21771556 = 7211^2 + 4666^2 .

It is a cyclic number.

It is not a de Polignac number, because 73770077 - 2¹⁶ = 73704541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73770077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73770071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505202 + ... + 505347.

It is an arithmetic number, because the mean of its divisors is an integer number (18695175).

Almost surely, 2^73770077 is an apocalyptic number.

It is an amenable number.

73770077 is a deficient number, since it is larger than the sum of its proper divisors (1010623).

73770077 is a wasteful number, since it uses less digits than its factorization.

73770077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010622.

The product of its (nonzero) digits is 50421, while the sum is 38.

The square root of 73770077 is about 8588.9508672480. The cubic root of 73770077 is about 419.3983770987.

The spelling of 73770077 in words is "seventy-three million, seven hundred seventy thousand, seventy-seven".