77890514 has 8 divisors (see below), whose sum is σ = 125823180. Its totient is φ = 35949456.

The previous prime is 77890511. The next prime is 77890517. The reversal of 77890514 is 41509877.

It is an interprime number because it is at equal distance from previous prime (77890511) and next prime (77890517).

It can be written as a sum of positive squares in 2 ways, for example, as 76860289 + 1030225 = 8767^2 + 1015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (77890511) 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, 1497869 + ... + 1497920.

Almost surely, 2^77890514 is an apocalyptic number.

77890514 is a deficient number, since it is larger than the sum of its proper divisors (47932666).

77890514 is a wasteful number, since it uses less digits than its factorization.

77890514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2995804.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 77890514 is about 8825.5602655016. The cubic root of 77890514 is about 427.0658616074.

The spelling of 77890514 in words is "seventy-seven million, eight hundred ninety thousand, five hundred fourteen".