77308486 has 16 divisors (see below), whose sum is σ = 124620336. Its totient is φ = 35836416.

The previous prime is 77308481. The next prime is 77308523. The reversal of 77308486 is 68480377.

It is a super-2 number, since 2×77308486² = 11953204015224392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77308481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14691 + ... + 19246.

It is an arithmetic number, because the mean of its divisors is an integer number (7788771).

Almost surely, 2^77308486 is an apocalyptic number.

77308486 is a deficient number, since it is larger than the sum of its proper divisors (47311850).

77308486 is a wasteful number, since it uses less digits than its factorization.

77308486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34023.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 77308486 is about 8792.5244384079. The cubic root of 77308486 is about 425.9994673302. Note that the first 3 decimals are identical.

The spelling of 77308486 in words is "seventy-seven million, three hundred eight thousand, four hundred eighty-six".