77622093 has 6 divisors (see below), whose sum is σ = 112120814. Its totient is φ = 51748056.

The previous prime is 77622059. The next prime is 77622121. The reversal of 77622093 is 39022677.

It can be written as a sum of positive squares in only one way, i.e., 71876484 + 5745609 = 8478^2 + 2397^2 .

It is not a de Polignac number, because 77622093 - 2¹⁰ = 77621069 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 (77622043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4312330 + ... + 4312347.

Almost surely, 2^77622093 is an apocalyptic number.

It is an amenable number.

77622093 is a deficient number, since it is larger than the sum of its proper divisors (34498721).

77622093 is a wasteful number, since it uses less digits than its factorization.

77622093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8624683 (or 8624680 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 77622093 is about 8810.3401182928. The cubic root of 77622093 is about 426.5747218734.

It can be divided in two parts, 77 and 622093, that added together give a triangular number (622170 = T₁₁₁₅).

The spelling of 77622093 in words is "seventy-seven million, six hundred twenty-two thousand, ninety-three".