77923486 has 4 divisors (see below), whose sum is σ = 116885232. Its totient is φ = 38961742.

The previous prime is 77923477. The next prime is 77923511. The reversal of 77923486 is 68432977.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68432977 = 41 ⋅1669097.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19480870 + ... + 19480873.

It is an arithmetic number, because the mean of its divisors is an integer number (29221308).

Almost surely, 2^77923486 is an apocalyptic number.

77923486 is a deficient number, since it is larger than the sum of its proper divisors (38961746).

77923486 is a wasteful number, since it uses less digits than its factorization.

77923486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38961745.

The product of its digits is 508032, while the sum is 46.

The square root of 77923486 is about 8827.4280512503. The cubic root of 77923486 is about 427.1261138273.

The spelling of 77923486 in words is "seventy-seven million, nine hundred twenty-three thousand, four hundred eighty-six".